Emergency unit
[化] 备用机件; 备用装置
🧩 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
Very good. Please fill out this form.
很好，请填写这张表格。
Why are you yelling?
你鬼叫个什么劲儿啊！
They don't often have a bad day this year.
他们今年的运气还不错。