When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候,对所有的人都不满意。
With time and patience the leaf of the mulberry becomes satin.
只要功夫深,铁杵磨成针。
It has always been a mystery to me who city dwellers, who appreciate all these things, obstinately pretend that they would prefer to live in the country.