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
When would you be fond of receiving the call?
你喜欢什么时候叫您？
No. It only goes as far as Main Street, but you can get the Number 31 there.
不去，最远只到正街。不过你可以到那里再乘31路。
Would you let me know your fax number?
可以告诉我您的传真机号码吗？