单词：be at
从事于,做
be at的用法和样例：
例句
- I didn't think you'd be at home, but I just called on the off chance.我想你不会在家的，只是抱著一线希望给你打个电话。
- I will be at liberty only at weekends.我只有在周末才有空。
- It is better to be at peace with your rivals at the party.在聚会上，你最好同你的对手和睦相处。
- I will be at your side, as I promised you.我会陪在你身边，就象我答应你的那样。
- His successor as the chairman will be at the conference.接替他担任主席的人将参加本次会议。
- Whoever can that be at the door?在门口的究竟是谁呢？
- If you don't speak good English, you'll be at a big disadvantage when you try to get a job.你要是英语讲得不好，找工作时就会处于非常不利的地位。
- I/We will be at the10 Baker Street at six sharp, and look forward to seeing you.我(们)将于晚六点准时到达贝克大街10号，到时再会。