Dark and bright
Ming Zhao Yin, a Chinese idiom, Pinyin is m í ngzh ā om é ng à n, which means the chaotic state of day and night. It's from the songs of Chu · Tian Wen.
Notes on Idioms
Dark is the same as "dark".
The origin of Idioms
In Chu Ci Tian Wen written by Qu Yuan in the Warring States period, who can be the best Zhu Xi's collective notes: "Ming, you also.". Zhao, MINGYE. It means day and night. When it is dark, it is said that day and night are not divided. " Dark also means "dark".
Idiom usage
Used as an object or attribute; used in writing. In ancient China, it is said that Pangu created the earth, and the remains of Nu Wa died, but the earth and sky were not formed. Human beings have appeared, and the darkness is clear. What can we do? Lu Xun's grave: history of man
Dark and bright
supported by irrefutable evidence - záo záo yǒu jù
be engaged in an occupation not related to one 's training - yòng fēi suǒ xué