点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
1. 闹钟An alarm clock is a clock that you can set to make a noise so that it wakes you up at a particular time.
1. a clock that wakes a sleeper at some preset time
Synonym: alarm
多通过句子记忆单词，而不是单独死记硬背。
