Backtrace
[计] 回溯
🗣️ 情景例句
At 4, but I have to leave by 3:00 to get there on time.
四点，不过我三点必须离开，才能准时到那里。
Sorry, She is out. Shall I take a message?
抱歉，她外出了，你要留口信吗？
Your prices seem a little high.
你们的价钱高了一些。