词典释义：
双语例句
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The edges are serrated like a steak knife, very blade like.
边缘像牛排刀一样有锯齿，很像刀刃。
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The shark tooth has serrations along the edge, literally like a steak knife.
鲨鱼的牙齿在边缘呈现锯齿状，简直就像一把牛排刀。