Bounded occurrence
[计] 约束出现
🧩 词语组成解析
a. 有界限的
🗣️ 情景例句
I'd like to buy some stamps for this letter.
我想买这封信的邮票。
Older and wiser.
越老越聪明。
She hired a car by the hour.
她租了一辆按钟点计费的汽车。