不到火候不揭鍋

1. • don't act until the time is ripe (idiom)

Character by character

• 不(bù)no
• 到(dào)reach
• 火(huǒ)surname Huo
• 候(hòu)wait
• 不(bù)no
• 揭(jiē)surname Jie
• 鍋(guō)pot