How do you pronounce 投效?

Q: How do you pronounce 投效? A: tau4 haau6, e.g.

投效 (tau4 haau6) — meaning, pronunciation, examples

投效 (tau4 haau6, tóu xiào) — to volunteer to help; to volunteer to work for someone; to go and offer one's services

投入 (tau4 jap6) — to concentrate in; into something
投向 (tau4 hoeng3) — to turn to; to throw towards
投 (tau4) — to follow; to vote; to cast; to send; to throw oneself (into the river etc); to…
投案自首 (tau4 on3 zi6 sau2) — self-incrimination; to turn oneself in; to surrender oneself
投注站 (tau4 zyu3 zaam6) — Betting Outlets; betting centres; betting stations
投資銀行 (tau4 zi1 ngan4 hong4) — Investment Banks