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
And to Robbie and the Stewart family
并且感谢Robbie和Stewart全家
Why are you so short?
你为什么那么矮呀？
The children started to walk around the island.
孩子们开始绕着小岛散步。