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“利器”的反義詞：鈍器。...

拙匠無利器.A bad shearer never had a good sickle.市內(nèi)利器傷人案增多,警方甚感憂慮.The police are worried about the increase in the number of stabbings in the city.一切工具都是危險的利器.All tools are in one sense edge - tools, and are dangerous....

“利器”的英語可以翻譯為：edge tool ...