Nine out of ten
Nine things out of ten are idioms, Pinyin J ǔ sh í zh ī Ji ǔ, interpreted as knowledgeable.
Idiom explanation
Explanation: of the ten things listed, nine are familiar with them. It's a metaphor for erudition.
The origin of Idioms
Source: Zhang Shuo of Tang Dynasty said in the tablet of Wei Jun, the governor of Yuzhou in the past of Tang Dynasty: "the aspiration of a sage is to hear one thing and then turn against three; the ability of a gentleman is to raise ten things and then know nine."
Examples of Idioms
Example: teachers with both ability and political integrity naturally have a high prestige among students.
Chinese PinYin : jǔ shí zhī jiǔ
Nine out of ten
feel uneasy even when eating and sleeping. qǐn shí bù ān
be prepared for danger in times of peace. jū ān sī wēi
all courtesies must be returned. lǐ wú bù dá