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
Tomorrow.
明天。
What's the matter with you?
你怎么了？
They play it like this, six students stand in a row in front of the class.
6个学生在全班前面站成一排。