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
Richard! I haven't brushed my hair. Richard
我头发都没有梳。
She has gone to take a look at the art gallery.
她为了参观美术品陈列馆而出去了。
Mr. Green doesn't climb down the chimney. He waits until the children are asleep.
格林先生不从烟囱上爬下来，他等候孩子们都睡熟。