名词
中文翻译：刀口
同义词：
['edge', 'blade例句：1. The chef used a knife-blade to cut the meat.（厨师用一把刀口切肉。）']
例句：
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1. The chef used a knife-blade to cut the meat.
厨师用一把刀口切肉。
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2. The old man sharpened his knife-blade with a stone.
老人用石头磨他的刀刃。
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3. The chef carefully sliced the steak with his knife-blade.
厨师小心翼翼地用他的刀刃切牛排。