Alertor
[计] 报警器
🗣️ 情景例句
We like to go to the theater together.
我们常一起去看戏。
You should be punctual for appointments.
你应该准时赴约。
Eventually chains were fixed to one end of the dish and a powerful winch was put into operation.
不过，他们终于将链条固定在盘子的一端，一台大功率的绞车开动起来。