| 释义 | 
		undertakeundertake /ˌʌndɚˈteɪk/ ●●○ AWL verb (past tense undertook /-ˈtʊk/, past participle undertaken /-ˈteɪkən/) formal VERB TABLEundertake |
 | Present | I, you, we, they | undertake |   | he, she, it | undertakes |  | Past | I, you, he, she, it, we, they | undertook |  | Present perfect | I, you, we, they | have undertaken |   | he, she, it | has undertaken |  | Past perfect | I, you, he, she, it, we, they | had undertaken |  | Future | I, you, he, she, it, we, they | will undertake |  | Future perfect | I, you, he, she, it, we, they | will have undertaken |  
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 | Present | I | am undertaking |   | he, she, it | is undertaking |   | you, we, they | are undertaking |  | Past | I, he, she, it | was undertaking |   | you, we, they | were undertaking |  | Present perfect | I, you, we, they | have been undertaking |   | he, she, it | has been undertaking |  | Past perfect | I, you, he, she, it, we, they | had been undertaking |  | Future | I, you, he, she, it, we, they | will be undertaking |  | Future perfect | I, you, he, she, it, we, they | will have been undertaking |  
    1[transitive] to agree to be responsible for a piece of work, and start to do it:  Baker undertook the job of writing the report.2undertake to do something to promise or agree to do something  |