打折扣

打折扣

Literally means:

give a discount

Actually means:

detract from the desired quality

It originally means deducing several Cheng (one Cheng is one-tenth) from the original price when doing business.

Metaphorically, it means falling short of the original standard or requirement when dealing with an assignment,or means that something hasn't been fulfilled according to the former standard. Derogatory to a certain extent.

原指做买卖时在原价基础上减去若干成（一成等于十分之一）付钱。

比喻按照低于原先的标准或要求办事，也指办事效果没有达到要求。具有一定的贬义色彩。