Odie的英语课

Odie的英语课 904 Grammar | Instructions 3


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It's important to … (make sure the electricity is off)

重要的是……(确定电源关上了/确保断电)

make sure 确保,确定,确认

sure 确定的,肯定的,毫无疑问的


It helps to … (wait for the light bulb to cool down) 

……是有用的(等灯泡变凉)

句子结构:句子开头的 it 是形式主语,句子的真正主语是 to 后面的内容

cool down 变凉,冷却,平静下来


Be sure to … (turn off the electricity before you touch the light bulb)

一定要……(在你触摸灯泡之前先关掉电源)


Always … (wear gloves when you touch a light bulb)

一定要/千万要……(触摸灯泡时戴手套)


Never … (touch a socket with wet hands)

千万不要……(手湿着触摸插座)


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Odie的英语课By Odie