一回生两回熟

yī huí shēng liǎng huí shú

see 一回生二回熟[yi1 hui2 sheng1 er4 hui2 shu2]

one

huí

variant of 迴|回[hui2]

shēng

to be born

liǎng

two

huí

variant of 迴|回[hui2]

shú

ripe; mature