Not at all
Nothing, a Chinese idiom, pronounced á om á ob ù f à n, means nothing. Very clean or disciplined. It comes from the records of Huayang state - Guanghan scholars by Chang Yu of Jin Dynasty.
The origin of Idioms
Chang Yu of the Jin Dynasty wrote in the records of Huayang state - Guanghan scholars: "pure independence, incorruptness, no crime, Yi Han Song sigh, the table heard three division." Ningzhou in nanzhong annals: "Zheng Chun in Guanghan Dynasty, who was honest and upright, did not commit a crime at all, sang by Yi and Han people, and recommended countless people."
Idiom usage
It refers to strict military discipline. example his march is also very good.
Not at all