alarm[əˈlɑːrm] 闹钟；警报

英文解释：

Alarm is a feeling of fear or anxiety that something unpleasant or dangerous might happen. 惊恐

例句：

We could not see what had alarmed him.

我们不明白是什么吓着他了。

He heard the alarm go off.

他听见警报器响了。

 

短语：
alarm clock [əˈlɑːm klɒk]闹钟

英文解释：

An alarm clock is a clock that you can set to make a noise so that it wakes you up at a particular time. 闹钟

例句：

I set my alarm clock for 4:30.

我把闹钟定在4:30。

Because his alarm clock didn’t go off.

因为他的闹钟没响。

 

近义词：

warn [wɔːrn] 警告，提醒

英文解释：

If you warn someone about something such as a possible danger or problem, you tell them about it so that they are aware of it. 警告; 提醒

例句：

They warned him of the dangers of sailing alone.

他们警告他独自航行的重重危险。

Mrs. Blount warned me not to interfere.

布朗特太太告诫我不要插手。

 

“小睡”用英语怎么说？

nap[næp] 小睡，打盹儿

英文解释：

If you take or have a nap, you have a short sleep, usually during the day.

(通常指白天的) 小睡

例句：

I might take a little nap.

我可能会打个盹儿。

 

“睡过头”用英语怎么说？

oversleep[ˌoʊvərˈsliːp]睡过头

英文解释：

If you oversleep, you sleep longer than you should have. 睡过头

例句：

I forgot to set my alarm and I overslept.

我忘了上闹钟，所以睡过了头。