副词
中文翻译：在
同义词：
['in', 'before例句：1. He will not come to the meeting unless he receives a reply by tomorrow morning.（除非他明天早上收到回复，否则他不会来参加会议。）']
例句：
-
1. He will not come to the meeting unless he receives a reply by tomorrow morning.
除非他明天早上收到回复，否则他不会来参加会议。
-
2. We must finish our work before leaving for the airport.
我们必须在我们离开去机场之前完成我们的工作。
-
3.She decided to go to the store before she had breakfast.
她决定在她吃早餐之前去商店。