alarm
「alarm」的意思
n. 警报；警报器；闹钟；惊恐，担忧; v. 使不安，使恐慌；给（门等）安装警报器
n.警报,惊慌,警告器vt.恐吓,警告
「alarm」的用法
alarm警报 - 在紧急情况下，及时发出警报以提醒人们。
「alarm」的例句
The alarm went off at midnight.
午夜时分，警报响了。
He set an alarm to wake up early.
他设了一个闹钟来早起。
The baby fell asleep to the sound of the alarm clock.
婴儿在闹钟声中睡着了。
The police department has installed new alarm systems.
警察部门安装了新的报警系统。
She woke up to the sound of the alarm.
她被闹钟声吵醒了。
The alarm system was triggered by a false signal.
报警系统因假信号而触发。
He bought a new alarm clock for his bedroom.
他为卧室买了一个新的闹钟。
The fire alarm was activated by the smoke detector.
烟雾探测器触发了火灾警报。
She turned off the alarm before leaving.
她在离开前关掉了闹钟。
The neighborhood has a loud community alarm system.
这个社区有一个响亮的社区报警系统。