HSK V7-9
Correct

中庸

/ zhōngyōng /
Strokes

Definition

the Doctrine of the Mean, one of the Four 四书[sì shū]

Example

As a Noun
golden mean (of the Confucian school); happy medium; middle course
As an Adjective
of ordinary talent; common; commonplace; mediocre
As a Noun
) The Doctrine of the Mean [one of the four great Confucian classics]