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
take more time to consider the matter - shì kuān zé yuán