Understudied
v. 练习做临时演员( understudy的过去式和过去分词 )
🗣️ 情景例句
You have a good command of English.
你的英语水平很好。
It seems you are not very patient with me, Ruth.
露丝，你似乎对我不太有耐心。
It is now being used indifferently for both.
人们现在正漫不经心地把知识用于这两个方面，