在英语中，"Tom's alarm clock" 指的是属于 Tom 的闹钟。这个短语的来源源于 "alarm clock" 这个单词本身，"alarm" 指的是警报或警告，而 "clock" 则指时钟。所以 "alarm clock" 就是一种能够在设定的时间发出警报的时钟。
下面是一些使用 "Tom's alarm clock" 的英文例句，以及它们的中文翻译：
"Tom set his alarm clock for 6am so he could get up early and go for a run."（Tom 设定了他的闹钟在早上 6 点响，这样他就可以早起出去跑步。）
"Tom's alarm clock was beeping loudly, but he was so tired that he couldn't even pft his head off the pillow."（Tom 的闹钟在大声响着，但他太累了，甚至连头也抬不起来。）
"Tom forgot to turn off his alarm clock, and it kept going off for hours until his roommate finally unplugged it."（Tom 忘记关掉闹钟了，它一直响了好几个小时，直到他的室友最后把它拔掉。）
下面是一些使用 "Tom's alarm clock" 的英文例句，以及它们的中文翻译：
"Tom set his alarm clock for 6am so he could get up early and go for a run."（Tom 设定了他的闹钟在早上 6 点响，这样他就可以早起出去跑步。）
"Tom's alarm clock was beeping loudly, but he was so tired that he couldn't even pft his head off the pillow."（Tom 的闹钟在大声响着，但他太累了，甚至连头也抬不起来。）
"Tom forgot to turn off his alarm clock, and it kept going off for hours until his roommate finally unplugged it."（Tom 忘记关掉闹钟了，它一直响了好几个小时，直到他的室友最后把它拔掉。）