on sale为什么翻译成廉价出售?

题目

on sale为什么翻译成廉价出售?

答案

4 on sale
a) available to be bought in a shop :
A wide range of postcards and other souvenirs are on sale in the visitors’ centre.
Stephen King’s new novel will go on sale (= will begin to be sold ) next week.
b) （especially American English） available to be bought at a lower price than usual :
These gloves were on sale for only $9.
尤其在美语里指低价出售,一般指开始出售的意思.