表示井水不犯河水的英文单词

“井水不犯河水”对应的英文单词有：

The well water does not intrude into [interfere with] the river water -- each one minds his own business.；keep as clear of sb. as well water and river water；each going his own way (without interfering with the other)；None may encroach upon the precincts of another.