Understudying
v. 练习做临时演员( understudy的现在分词 )
🗣️ 情景例句
Feel free to look around.
请随意到处看看。
Banking is such a boring business; I believe I'll take a short snooze.
警卫银行是桩枯燥的差事，且打个盹吧。
He was astonished at what he found.
看到的情景使吃惊，