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
In my country, we get a couple of days off for Easter.
在我国，我们在复活节的时候有好几天的假期。
I know the boy whose father is a mailman.
我知道那个男孩的父亲是邮差。
The play was very interesting.
戏很有意思，