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English definition of “undertake”

undertake

verb     /ˌʌndəˈteɪk/ (undertook, undertaken)
[T] to do or begin to do something, especially something that will take a long time or be difficult: He needs to undertake a proper cashflow and budgeting exercise. Some companies have undertaken a thorough transformation of their production methods.
[I] formal to promise or agree that you will do something: undertake to do sth All banks have undertaken to give printouts on request of standing orders and direct debits.
(Definition of undertake verb from the Cambridge Business English Dictionary © Cambridge University Press)
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