There is no curtain
It is a Chinese idiom. Pinyin is w é im ù B ù Xi ū, which means a taboo word for family promiscuity. It's the same as "the curtain is thin but not long". It comes from the Confucius family language, five punishment explanation.
The origin of Idioms
"Confucius family language · five punishment explanation": "there is no difference between men and women who sit in promiscuity, it is not called promiscuity, there is no difference between men and women, it is said that the curtain does not repair."
Analysis of Idioms
A thin curtain
Idiom usage
To be an attribute or an object; refer to domestic promiscuity
There is no curtain
The thunder is loud, the rain is small - léi shēng dà,yǔ diǎn xiǎo
Old age and death do not communicate with each other - lǎo sǐ bù xiāng wǎng lái
Plant in the morning and reap in the evening - zhāo zhǒng mù hù