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Jyutping long4 mong4
Pinyin láng máng

Definitions (CC-CANTO)
  1. hurry; very anxious (slang)
Definitions (粵典–words.hk)
  1. 形容詞
    匆忙​;​急忙​;​過份​緊張
    in a hurry; very tense
Definitions (Kaifangcidian)
  1. 匆忙
  2. 急忙