undertook

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undertake有承担;承诺;等意思，那么你知道undertake的过去式是什么吗?下面一起来学习一下undertake的过去式以及undertake的用法和例句，希望对大家的学习有所帮助!undertake的过去式及其它时态undertake的过去式:undertookundertake过去