the long dark years under the rule of the exploiting class
It's hard to see at night. Its pronunciation is ch á ngy è n á nm í ng. It's a Chinese word, which refers to the long dark rule. From Mao Zedong's "huanxisha and Mr. Liu Yazi"
The origin of Idioms
Mao Zedong's "huanxisha and Mr. Liu Yazi" said: "it's hard to see in the night. Chixian's sky is full of demons and monsters for a hundred years, and the 500 million people are not reunited."
Idiom usage
In this long night, truth will be covered up.
the long dark years under the rule of the exploiting class
to live long and have unending good fortune - tiān bǎo jiǔ rú