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
No problem, sir. Someone will bring them to your room shortly.
没问题，先生。有人会尽快给你送过去。
Those that make the best use of their time have none to spare.
能充分利用时间的人不会有时间多馀。
I've written a cheque for you.
我给你开了一张支票。