Demonstration unit
[化] 示范装置
🧩 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
What's your major?
你是什么专业的？
Excuse me, please.
对不起。
Yes, it is, she said. And who are you, anyway?
不，是我的名字啊，她说，而你到底是谁呀？"