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
You'll see a stop sign.
会看到有个停车再开标 。
At noon I had lunch with a friend of mine.
在中午我与一个朋友一起吃了午餐。
The men of our family waded down through our flooded meadows with boathooks, in the hope of being able to grapple a corner of the raft and pull it out of the current towards our bank.
我家的男人们手拿船篙过被水淹没草场，希望能够钩住筏子一角，将它拽出激流，拖回岸边。