Understudying
v. 练习做临时演员( understudy的现在分词 )
🗣️ 情景例句
anyway.
不管怎么说。
Never think yourself above business.
勿自视过高；不要眼高手低；永远不要认为自己是大才小用。
We're going to substitute a better item for number 3.
我们将以品质较好的来代替三号产品。