Catalyst unit
[建] 催化单元
🧩 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
The price includes mailing costs.
这价格包括邮寄费用。
She's head over heels in love with him.
她深深地爱上了他。
I don't have any cash with me.
我身上没带现金。