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
Has a poor personal appearance.
衣着形象不佳。
A liar is worse than a thief.
撒谎比偷窃更可恶。
A wet road is usually slippery.
潮湿的路往往是滑的。