动词中文翻译1
中文翻译：Unknown
同义词：
['tighten', 'sharpen', 'refine例句：1. The knife is sharpening on the stone.（刀子正在石头上磨利。）']
例句：
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1. The knife is sharpening on the stone.
刀子正在石头上磨利。
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2.The carpenter needs to sharpen his tools before starting a new project.
木匠需要在开始新项目前磨利他的工具。
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3. The paintbrush is sharpening its bristles.
画笔正在磨利它的刷毛。