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
Hi, Grandpa.
嗨， 爷爷。
Which one is more convenient?
哪一个是比较方便的？
Is there anything else that you want me to get?
您还要我买别的东西吗？