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
It's getting late.
时间不早了。
She was not in the slightest surprised.
她一点也不吃惊。
Kate Klarke! I know her. I met her last year. Do give her my regards.
凯特·克拉克！我认识她。我去年见过她。请代我向她问好。