Collins Chinese Dictionary Plus (3rd edition), 2011:
何苦 hékǔ 副
- 你何苦这(這)么(麼)做呢? Nǐ hékǔ zhème zuò ne? Why are you bothering to do it?
- 你何苦去那么(麼)早呢? Nǐ hékǔ qù nàme zǎo ne? Why are you bothering to go so early?