动词
中文翻译：变细
同义词：
['diminish', 'shorten']
例句：
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1. Thetapered end of the stick is sharpenough to cut through paper.
这根棍子的变细端足够锋利，可以割破纸。
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2. As the sun sets,the light from the street lamps tapers.
随着太阳落山，街灯的光逐渐减弱。
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3. Theriver's flow hastapered over the years dueto erosion.
由于侵蚀，这条河流的流量逐年减少。