English listening

Tell me some of the things that it is  looking at ,so obvious things like if someone presses like or stay on a video for a  long time ,that give you a clue more like that . But is it subject matter ? what are the  array of things you have notice , that you can actually track that provide useful clues .
I’m going to simplify this a lot ,but the machine learning the recommendation ,algorithm   ,is really just a math . 
So for example , if you like videos ,1.2.3.and  4 , and I like videos 1,2,3,and 5. Maybe he like videos 1,2,3,and 6, now what’s going to  happen is  ? Because we like 123 at same time ,he is going to  be shown 456 ,  so are we .
And you can think about this repeat at  scale  in  real time ,across more than a billion people ,that’s   basically what it is  ,it’s  math , and of course you know ,AI and machine learning has allowed this to be done , at very very big scale , what we have seen  the result of this ,is that they learned the interest signals that people exhibit very quickly and shows you  content really relevant for you , in a very quick way .

By the  end of 2022, spaceX was preparing for a key test ,starships first test flight  using  both parts of the racket. Musk  said the year  before that there was lot of risks associate with the  first launch 

 I would not say like ,it is likely to be success , but I think we will make a lot of progress .

The plan was for starship to take off from the launch part in Texas . The boost would then separate and fall into the Gulf of Mexico as the spaceX engines fired and took it in a   90 minutes flight . Then it would come down ,and crash in the pacific ocean ,  but that’s not what happened ,shortly  after starship launched at  9,33am eastern . A graphic  on the live stream  indicated that three engines were not working .  With more  appearing to  go out before the blast .

The shutter that was intended to separate from booster here . Didn’t 

After climbing 24miles , the racket began to tumble back to earth , and around 4 minutes into its flight , starship explored .SpaceX said a flight termination system  was  triggered on  both this spacecraft  and the  booster .

 When you have a failure ,you learned a lot from that failure  . So I think their plan was to test to the point of  failure ,and then let’s learn  from what  we can from that  failure ,so it never happens again .

tumble 翻滚

shutter 快门

booster 助推器

5.4 
Who exactly is this  whiz kid holding the title of the w or  young self-made billionaire . Let’s found out .
Alexander wang is always love mathematics ,  ever since he was a kid ,wang   has participated in  several national math and  coding competitions ,and although he  didn’t win the  competitions, the thrill of the competition left huge impression on him, and pushed him to become a genius coder .  it was no denying that  following his passion to push wang to great successful heights , and 25 ,wang is now  the world’s youngest  self-made  billionaire  . When he was 19 , wang  decided to drop out of  college  and  co-fund  software company , called scale AI , the company which just name scale  AI .makes use of  technology  to work much faster than human analysts can work , to examine satellite images .

Nothing quite conveys America’s need for  quick culinary convenience  like a tv dinners , turkey and gravy with mashed potatoes and peas ,all  neatly portioned）in an easy oven ready tray


The tv dinner of the 1950s and 60s , changed a lot in the  decade  since , today ,the frozen foods are  a booming category in supermarkets , in 2023, modern home  appliances and direct to consumer business models  are picking up where those tv dinners left off .
Technology’s always going to be at the forefront of what drives ,  I think  a lot of consumer innovations ,and  balancing  that  against the very  traditional and  very recognizable experience of sharing a kitchen ,to both prepare and enjoy a meal  .  Is incredibly important to us ,  I don’t think that is ever going to go away .


conveys（运输，表达
culinary （烹饪的 食物的
turkey and gravy (火鸡和肉汁） 
neatly portioned （整齐的排列）
mashed(捣碎的
oven(烤箱）
tray （托盘）’
booming 繁荣的
left off 停止 中断
incredibly 难以置信的

That’s  two ways  to unlock energy from hydrogen that’s  coming out here .firstly it’s flammable ,so you could just  burn it .and secondly ,you could use to  power ,what’s called a flue cell .
This essentially  work  like a battery running on hydrogen or oxygen ,they react to supply to electricity that could for example, power of car. The only by-produces are heats and water ,and all of this is not really  news , the fuel cell  was invented back in  1800s ,later on the same century ,the guy in Denmark ,was called KuMepuwa ,was already use windmills to  power electrolysis   ,that supplied  hydrogen for school  gas lamps, and  in 1960s , general motors  built flue power van ,that run an hydrogen 
Today ,almost hydrogen we  produced   is used to make other things ,like fertilizers  or petroleum , but it’s never made it big as  a fuel .it’s just always be easier and cheaper to directly burn fossil fuels instead, But that is changing .
essentially。本质上
fertilizers   肥料
petroleum  石油 原油
electrolysis 电解
hydrogen  氢气

Traditional afternoon tea , the epitome of  indulgence  in the finest  English manor , a culinary experience that feels  all the cozier  when London is yet again gray and  rainy .
Afternoon tea can consist of several elements , one of them is ,of course ,the tea itself .follow by finger sandwiches ,usually with cucumber , salmon ,eggs ,and chicken  and curry sauce . Accompanied  by two canapés per person . Scones with lemon  curd  cream ,strawberry jams , and (clotted ) cream . and finally , a selection of  bite-sized  cakes and pastry ,
The traditional of afternoon tea  dates  back to the  1840s , and was invented by the duchess of Bedford a lady in waiting  to  queen Victoria ,
 She thought ,There was too much of  gaps between lunch and dinner ,so she asked her servants to in the afternoon ,to  make sandwiches , make scones ,make cakes . She really enjoyed that ,she was eating that , and she loved it ,so she started inviting her friends for it as well 


epitome  典型，缩影
Indulgence 沉溺的 放纵的
culinary 烹饪的
cozier 温暖舒适的
Curry 咖喱
curd 冷凝

If it’s 8 o’clock in Vancouver ,nine in Calgary ,11pm in Toronto. What time is on the moon?  The moon sits about many time zones, but why does it matter ?  It’s a distant unpopulated landscape  after all . But it  won’t alway be .

Nasa has start up   moon missions  again ,  and now countries around the world are sending spacecraft to the moon . Plus private  company are  seeing big business and tourism opportunities on the moon , the European space agency say it’s time the  world agreed  on the standard  of the  time for moon travel to ensure global coordination .

The moon is about  to become a ] a very busy  place over the next decade , and probably for the rest of its existence ,you need an efficient  . And  safe system in place 

It’s like the (growth of ) train travels in the 19 century , countries need timetable for train crossing borders . It’s why they came up  with 24 basic times zones  around the world . 

start up 开始、发动

is about  to 将要

Since 2007 , earth  hour have shone a spotlight on the issue of climate changes  and  nature loss  .   We’ve reached over 190 countries  and territories and millions people around the globe ,from asian and Africa ,to north and south American ,oceania and Europe ,to Antarctica we ‘ve spark conversation in English ,Portuguese ,  zhongwen…… ,we’ve  generated  hundreds and thousands of media  articles and billions of impressions  online , but 2023 must be a year of change ,in order  to reach  our 2030 nature  positive goal ,we need more people ,more than ever ,we need individuals  ,businesses .communities  , towns and  cities , entire nations  , to join in with earth hour ,to play their part to create the biggest hour for earth .

Portuguese  葡萄牙

shone  发光

spotlight  聚光灯

impressions 印象 

territories 领土

NO 1, Cappadocia ,in central  of Turkey ,Cappadocia is  a scene straight out of fairy tale  ,combining both natural  and man-made beauty , it’s a  (spellbinding destination ) . The region can combines five provinces  , featuring awe-inspiring dessert landscapes  ,packed  with rock chimneys  ,rolling hills, and deep (valleys )  ,that  reflect the early morning  light . Travers   come to Cappadocia to see it  from  above ,  the openness  of the scenery works well with the slow rising sun ,whose beams  create  a dancing  mass  of  shadows and light , there is much to see on the ground  as well , from charming town and underground cities ,to ancient churches and historic caves .  

spellbinding  引人入胜的

chimneys  烟囱型

valleys 山谷

Beams  光线

It’s arguably the. World most  famous painting today , but how did it achieve its status ,Leonardo is   thought to have started portrait in 1503 , at request of a Florentine business man ,who want to  portrait  of his wife ,(Lisa Gherardini ), Leonardo  continued working on the painting for more than ten years , but with unfinished by the time he died ,over his life time ,Leonardo can (conduct groundbreaking ) studies on human optics ,which let him (pioneer ) a certain  artistic techniques ,some  can be seen in the menalisa ,using (atmosphere ) perspective ,  he make images at great distance (hazier ) ,producing (the illusion) of profound depth .and with sfumato  ,he created subtle gradations between colors ,that’s softened the edges  of the  forms he depicted . All of this  is striking 

portrait 肖像

groundbreaking 动工 开创性的

pioneer 先锋

optics 光学

hazier 朦胧的 模糊的

illusion 错觉 幻觉

profound 深刻的

subtle gradations  微妙的层次

depicted 描绘