war·rant

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【释义】：

n．❶ 正当理由，根据，权威：He had no warrant for saying so(for what he did)．他没有理由这样说(做)．❷ 命令状，委任状，执照，许可证：a search warrant(住宅)搜查证．a warrant of attorney委任状．a warrant for arrest逮捕证．warrant officer【军】准尉．

－vt．❶ 认为正当．❷ 保证：I’ll warrant him a good comrade．我担保他是个好同志．I’ll warrant(you)that the work will be finished within a week．我保证这工作在一周内完成．This material is warranted(to be)pure silk．这料子保证是纯丝的．