See also: 雷打不动

Chinese

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thunder
beat; strike; break
beat; strike; break; mix up; build; fight; fetch; make; tie up; issue; shoot; calculate; since; from; dozen
 
not; no
to move; to change; to use
to move; to change; to use; to act
 
trad. (雷打不動)
simp. (雷打不动)

Etymology

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Literally: even if lightning were to strike it, it will not move

Pronunciation

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Idiom

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雷打不動

  1. one's mind is made up, and cannot be changed
  2. to rigidly adhere to an established arrangement, without any changes