Emergency power(supply)
[化] 应急动力源; 应急电源; 事故电源; 保安电源
🧩 词语组成解析
🗣️ 情景例句
My vacation was too short, I needed more time.
假期太短了，再有几天就好了。
The watch is out of order.
这手表出毛病了。
Follow your teacher's instructions.
按照他/她告诉你的去做。