I don't know
As a Chinese saying goes, Pinyin is sh é Nb ù zh ī Gu ǐ B ù Ju é, which means that things are done secretly and are not discovered.
Idiom explanation
It's a secret thing to do without being noticed.
Idioms and allusions
1. Yuan · anonymous's "enemy creditor" the second discount: "this trouble God does not know, the ghost does not know, the heaven comes the highland to be thick." (2) the 42nd chapter of Water Margin by Shi Naian of Ming Dynasty, song Gongming meets nine heaven Xuannu and receives three volumes of Tianshu in Daocun village, and now there is no need to order many people to go. Song Jiang goes to the village secretly, and moves his father up the mountain with his brother song Qing. At that time, the gods and ghosts in the village are not aware of it. (3) Yao xueyin's "Li Zicheng" Vol.1 Chapter 14 Li Zicheng and Liu Zongmin led the team across Luonan and ambushed in the deep mountains and dense forests at the east foot of Huashan Mountain.
Discrimination of words
[pinyin code]: sbzj [usage] is used as adverbial and clause to describe a secret thing
I don't know
argue back and forth and cannot agree - jù sòng fēn yún
have hundreds of attendants at one 's beck and call - yī hū bǎi nuò
blot out the sky and cover up the earth - pū tiān gài dì