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Jyutping maa4 bei3 daai6 ji3
Pinyin má bì dà yì

Definitions (Wiktionary)
  1. phrase, idiomatic
    to lower one's guard; to be careless and unconcerned
    • 在一般情況下,人民內部的矛盾不是對抗性的。但是如果處理得不適當,或者失去警覺,麻痹大意,也可能發生對抗。
      在一般情况下,人民内部的矛盾不是对抗性的。但是如果处理得不适当,或者失去警觉,麻痹大意,也可能发生对抗。
      zài yī bān qíng kuàng xià , rén mín nèi bù de máo dùn bù shì duì kàng xìng de . dàn shì rú guǒ chǔ lǐ de bù shì dàng , huò zhě shī qù jǐng jué , má bì dà yì , yě kě néng fā shēng duì kàng .
      In ordinary circumstances, contradictions among the people are not antagonistic. But if they are not handled properly, or if we relax our vigilance and lower our guard, antagonism may arise.

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Jyutping maa4 bei3 daai6 ji3
Pinyin má bì dà yì

Definitions (CC-CEDICT)
  1. unwary
  2. negligent