| 词汇 | close on |
| 释义 | close on1.■包围；笼罩：As darkness closed on them, they decided to return home.当夜幕笼罩下来时，他们决定回家。2.■接近；赶上：We didn't recognize them until they closed on us.他们向我们走近时，我们才认出他们来。 |
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