泾渭分明

as rivers Jing and Wei separate clearly (idiom) / to be entirely different

Jing River

the Wei River in Shaanxi through the Guanzhong Plain 關中平原|关中平原[Guan1 zhong1 Ping2 yuan2]

to divide; to separate / to distribute; to allocate / to distinguish (good and bad) / (bound form) branch of (an organization); sub- (as in 分局[fen1 ju2]) / fraction / one tenth (of certain units) / unit of length equivalent to 0.33 cm / minute (unit of time) / minute (angular measurement unit) / a point (in sports or games) / 0.01 yuan (unit of money)

part / share / ingredient / component

clear / distinct / evidently / clearly

Ming Dynasty (1368-1644) / surname Ming / Ming (c. 2000 BC), fourth of the legendary Flame Emperors, 炎帝[Yan2 di4] descended from Shennong 神農|神农[Shen2 nong2] Farmer God

bright / opposite: dark 暗[an4] / (of meaning) clear / to understand / next / public or open / wise / generic term for a sacrifice to the gods