未雨綢繆

1. • lit. before it rains, bind around with silk (idiom, from Book of Songs 诗经) fig. to plan ahead
2. • to prepare for a rainy day

Character by character

• 未(wèi)not yet
• 雨(yǔ)rain
• 綢(chóu)silk
• 繆(móu)surname Miao