賺攪 [赚搅]

Jyutping zaan2 gaau2
Pinyin zhuàn jiǎo

Definitions (CC-CANTO)
  1. futile efforts; vain efforts
Definitions (Kaifangcidian)
  1. 白忙活
  2. 白幹 – 白干
  3. 徒勞 – 徒劳