惊动的英文：
alarm
alert
disturb

Don't alert the enemy.
不要惊动敌人。

The noise alarmed the bird and it flew away.
小鸟被声音惊动而飞走了。

Hideousness of aspect, deformity of instinct, troubled him not, and did not arouse his indignation
外形的丑陋和本性的怪异都不能惊动他，触犯他。

To rouse(game)from its hiding place or lair;flush.
惊动将猎物从藏身处或巢穴中惊起;使兴奋

He is at an absorbing thriller and can't be disturbed.
他正在阅读一部引人入胜的惊险小说，什么也惊动不了他。

"Trouble should be settled on the spot, I say. There's no need to go and disturb the old gentleman. "
"依我的主意,那里的事那里了结好,何必去惊动他老人家."

In case of fire, sound alarm.
如遇火警，请拉响警报。

analogue detection and alarm system
模拟量探测器报警系统