I hammered on all the doors to raise the alarm.

我敲打所有的门让大家警觉。

《牛津词典》

Judge Bruce Laughland praised the courage of the young policeman, who managed to raise the alarm on his radio.

布鲁斯·劳赫兰法官赞扬了那名年轻警察的勇气，该警察设法通过自己的无线电收发装置发出了警报。

《柯林斯英汉双解大词典》

If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.

如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。

youdao

This technique has allowed Graham to raise the alarm early and often about potentially dangerous drugs.

FORBES: Face Of The Year: David Graham

Human operators watch for anomalous behaviour and raise the alarm if they detect anything suspicious.

ECONOMIST: Putting it all together

The security guard, who was not injured, managed to free himself and raise the alarm shortly after midnight.

BBC: Europe