虚惊的英文：
false alarm

参考例句：

"That was a harrowing scene on the road, but it was also a typical and vivid portrayal of racial harmony."
这场虚惊是街头的实况，却是种族和睦的精彩典型写照。

false是什么意思：
adj. 错误的；不真实的；人造的；假的；不诚实的；不忠诚的

This assumption is false in several ways.
这种推断是错误的，错在了多个方面。

The statement is manifestly false.
这种说法明显不确。

An act or instance of such falseness.
这种假装的行为或实例。

false vampire bat
假吸血蝠

Nail under false color
冒充,打着别人的招牌骗人

alarm是什么意思：
n. 警报器；闹钟；惊慌
v. 向...报警；使惊恐

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