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Jyutping hei3 hau6 goi2 bin3
Pinyin qì hòu gǎi biàn

Definitions (Wiktionary)
  1. noun
    climate change
    (syn.) 氣候變遷, 气候转变, 气候变化, 气候变迁, 氣候轉變, 氣候變化