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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)
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)