名词
中文翻译：交替计时器
同义词：
['variable timer', 'adjustable timer例句：1. The alternate timeron the oven is set to 30 minutes.（烤箱上的交替计时器设置为30分钟。）2. The teacher used an alternatetimer during the test to ensure fairness.（老师在考试中使用了交替计时器以确保公平。）3. The student was given analternate timer to help him finish hishomework on time.（学生被给予了一个交替计时器来帮助他按时完成作业。）']
例句：
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1. The alternate timeron the oven is set to 30 minutes.
烤箱上的交替计时器设置为30分钟。
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2. The teacher used an alternatetimer during the test to ensure fairness.
老师在考试中使用了交替计时器以确保公平。
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3. The student was given analternate timer to help him finish hishomework on time.
学生被给予了一个交替计时器来帮助他按时完成作业。