??? 情景例句
Would you like to discuss it over lunch, Mr. Smith?
史密斯先生，吃飯時(shí)再討論好嗎？
If you lose your way, ask a policeman.
如果你迷路了，可以向警察打聽。
A woman saw it happen when she was walking past.
一位婦女走過的時(shí)候，看到我的鋼筆掉了。