🧩 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;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 箴言篇（旧约圣经中的）
🗣️ 情景例句
It was his first date in two years.
这是他两年来第一次约会。
This problem is hard to solve.
要解决这个问题不简单。
I can see why you are having some problems with it.
我明白为什么你用起来会有问题了。