Compulsory book
[经] 必需的帐簿
🧩 词语组成解析
book
[bʊk]
n. 书;卷;课本;账簿;
vt.& vi. 预订;
vt. 登记;（向旅馆、饭店、戏院等）预约;立案（控告某人）;订立演出契约;
adj. 书的;账簿上的;得之（或来自）书本的;按照（或依据）书本的;
🗣️ 情景例句
Come on, you can do that.
振作起来，你一定行。
I invited him ti come down, but he wouldn't.
我请他下来，但是他不肯。
She wanted to find out whether it would be comfortable to wear.
想看穿起来是否舒服。