名词中文翻译
中文翻译：计时器
同义词：
['chronometer', 'timekeeper']
例句：
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1.The chronometer was accurate to within a few seconds.
这个计时器非常准确，误差只有几秒钟。
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2. The timekeeper carefully checked the clock every hour.
守时员每小时都仔细检查时钟。
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3. The chronometer was used to measure the exact time of an event.
计时器被用来测量某个事件的具体时间。