水到渠成

shuǐ dào qú chéng

lit. where water flows, a canal is formed (idiom)

fig. when conditions are right, success will follow naturally

水

shuǐ

water

到

dào

to reach; to arrive

渠

qú

(artificial) stream; canal; drain; ditch (CL:條|条[tiao2])

成

chéng

short name for Chengdu 成都[Cheng2 du1]