| 释义 |
close in- 使…关闭；封锁：
The workmen are closing the doorway in. 工人们即将关闭入口。 - (白昼)渐短：
As autumn advances the days close in and the hours of light become fewer and fewer. 随着秋天的推移，白昼越来越短，光照时间也越来越少。 - 迫近；包围，笼罩(常与 on 连用)：
They ran away when the enemy army began to close in. 敌军迫近时，他们逃跑了。 - 笼罩得无法进去：
The airport was closed in by the dense fog. 机场被浓雾笼罩着，飞机无法起降。
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