Beijing has so many buses that there is often a traffic jam in rush( ) .

题目

Beijing has so many buses that there is often a traffic jam in rush( ) .
A.an hour B ,moment 选择哪个?为什么?
sorry、正确答案我没打上，是hours 但为什么啊？

答案

选择B 名词+ rush moment 译为“高峰期”.
A选项直接为hour即可,rush hour 也是高峰期的意思