英语问题50-cents-offA psychologist has run a series of tests which reveal people will give away some of their important personal information just to get their hands on a pitiful 50-cents-off coupon.这句话中的50-cents off是什么语法?还是固定搭配?

问题描述:

英语问题50-cents-off
A psychologist has run a series of tests which reveal people will give away some of their important personal information just to get their hands on a pitiful 50-cents-off coupon.这句话中的50-cents off是什么语法?还是固定搭配?

cents-off coupon(优惠券 优惠券),固定搭配

是一种构词法,就像20-year-old girl/boy一样,作为一个形容词修饰后面的名词