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
How many people will you be bringing?
你约了多少人来？
God! It's a hard stuff.
唔！这家伙是个硬骨头。
Ken gave up smoking two years ago. He'd been smoking for thirty years.
两年前肯戒了烟，之前他抽了三十年烟。