投效 [－－]

Jyutping tau4 haau6
Pinyin tóu xiào

Definitions (CC-CANTO)
  1. to volunteer to help; to volunteer to work for someone; to go and offer one's services
Definitions (Wiktionary)
  1. verb, literary
    to go and offer one's services
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）