??? 情景例句
His wife has himi under her thumb.
他完全受他妻子控制。
Never swap (or swop) horses while crossing the stream.
騎渡中流莫換馬。（指危難時不宜做大變動）
Now, this is the chemistry lab. Have you been in this lab before?
好啦，這是化學實驗室。你們以前到過這個實驗室嗎？