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
Do you know anything about South American culture?
你了解南美洲的文化吗？
In the evening one may praise the day.
入夜方能赞美白昼。
I never enjoy meeting Nigel Dykes.
我就怕遇到奈杰尔。戴克斯。