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Jyutping tiu1 cung5 daam3
Pinyin tiāo zhòng dàn

Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)

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Jyutping tiu1 cung4 daam3
Pinyin tiāo zhòng dàn

Definitions (Wiktionary)
  1. verb, verb-object
    to take up an important yet challenging task