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
Where's the dressing room?
试衣间在哪儿？
Don't pass up a golden opportunity.
勿失良机。
Has it ever happened to you?
这种事情在你身上出现过吗？