按质定价

to fix a price based on quality (idiom)

to press / to push / to leave aside or shelve / to control / to restrain / to keep one's hand on / to check or refer to / according to / in the light of / (of an editor or author) to make a comment

character / nature / quality / plain / to pawn / pledge / hostage / to question / Taiwan pr. [zhi2]

to set / to fix / to determine / to decide / to order

to set a price / to fix a price

price / value / (chemistry) valence

great / good / middleman / servant