动词
中文翻译：减少
同义词：
['diminish', 'decrease', 'reduce']
例句：
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1. The population of the city has tapered off significantly in recent years.
近年来，该市的人口显著减少。
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2. The company's profits have been tapering off recently.
该公司的盈利最近一直在减少。
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3. The temperature has tapered off after a few hours.
几个小时后，温度已经降下来了。