雷打不動 [ㄌㄟˊ ㄉㄚˇ ㄅㄨˋ ㄉㄨㄥˋ; lei2 da3 bu4 dong4] not shaken by thunder (idiom); the arrangements are unalterable to adhere rigidly to regulations will go ahead whatever happens (of an arrangement or plan) ◄ ►
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