B-unit
变数部件，变址部件
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
I just can't bring myself to spend a month's salary on a pair of shoes.
我才不愿意把一个月的薪水花在一双鞋上。
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
Which language is spoken by the largest number of people in the world?
世界上哪种语言说的人最多？