起早貪黑 [－－贪－]

Jyutping hei2 zou2 taam1 hak1
Pinyin qǐ zǎo tān hēi

Definitions (CC-CEDICT)
  1. to be industrious, rising early and going to bed late
Definitions (Wiktionary)
  1. phrase, idiomatic
    to work from dawn to dusk
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）