uncertainty
Indefinite day, a Chinese idiom, Pinyin is w è ID ì ngzh ī Ti ā n, which means that things have not been settled or decided yet. From the story of heroes and heroines.
The origin of Idioms
The tenth chapter of biography of heroes and heroines by Wen Kang of Qing Dynasty: "don't take advantage of the uncertainty of success or failure, and leave yourself a place first."
Idiom usage
Be the object of; refer to a time that has not been decided
Examples
Zhou Libo's "storm" part 2: "things are still in the air, what are you busy with?"
uncertainty
the moon is bright and the wind cool - yuè bái fēng qīng
Cherish the quality and cherish the truth - huái zhì bào zhēn