at once
Instant, Chinese idiom, Pinyin is l ì sh í s ā NK è, meaning immediately, immediately. It's from officialdom.
The origin of Idioms
Chapter 51 of Li Baojia's officialdom in the Qing Dynasty: "one day I heard a joke from my friend, and I immediately forced my mother to go out, which was incompatible for a moment."
Idiom usage
Be adverbial; refer to immediately. He is going to ask for someone in three minutes.
at once
the dresses and ornaments of high officials in ancient times - yū qīng tuō zǐ
high position and handsome salary - gāo jué hòu lù
the three parties concerned confront in court - sān cáo duì àn