闹钟用英语用英语怎么说

"闹钟"用英语是"alarm clock."
Alarm clock这个词源于拉丁语"alarma"和古英语"clax"，意思是警报器和钟，两个词合并成为“alarm clock”。
一些英文例句及其中文翻译如下：
I set my alarm clock for 7:00 am every morning.
我每天早上7点设定闹钟。
I always forget to turn off my alarm clock before I fall asleep.
我总是忘记睡觉前关掉闹钟。
The alarm clock buzzed loudly, waking me up from my deep sleep.
闹钟发出嘈杂的嗡嗡声，把我从深睡中唤醒。
I hate it when the alarm clock goes off in the middle of the night.
我讨厌在半夜时闹钟响起。