un·der·take

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【释义】：

(undertook，undertaken)vt．❶ 承担，担负：undertake an arduous task承担艰巨任务．undertake responsibility承担责任．❷ 开始，著手：undertake a piece of work开始一项工作．❸ 同意，允诺，约定：We undertook to finish the work by Monday．我们答应星期一以前完成这项工作．❹ 断定，担保：I can’t undertake that he will come tomorrow．我不能保证他明天会来．