不得已而为之
bù​dé​yǐ'ér​wéi​zhī

to have no other choice

  1. 不得已 bù​dé​yǐ verb
    to have no choice
    to act against one's will; to have no alternative but to do something
  2. 而 ér particleconjunction
    [adverbial linker]
    Connects an adverb-like description to the following verb to show the manner, cause, or basis of an action.
  3. 为 為 wéi verb
    to do
    to do; to make; to act; to govern; to manage
  4. 之 zhī pronoun
    it
    Used only in the object position to refer to a person or thing already mentioned, meaning "him", "her", "it", or "them".