题名	解释
利器	1.a sharp weapon; an edge(d) tool; a cold iron 2.a good tool; an efficient instrument ~cold- steel~cold-steel~edge tool
医疗用利器	sharps
利器刀剑制造业	cutlery
唱机用唱针锐利器	needle sharpener for record player~edle sharpener for record player~needle sharpener for record player

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