Exercise book
辅助 Assistantn. 练习本
🧩 词语组成解析
exercise
['ɛksɚsaɪz]
n. 练习;运动，训练;运用;典礼;
vi. 锻炼，训练，练习;
vt. 锻炼（身体某部位）;使焦虑，使忧虑;实行，发挥（作用）;运用;
ex出+erc力量+ise表名词，物品，状态 →练习，锻炼
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
He's just fooling around.
他用情不专。
Every salesman boasts of his own wares.
老王卖瓜，自卖自夸。
It is one of the most unpleasant discoveries which we all make that we must decline in this way,
人人必然会衰老。