every week a week 和one week的区别

题目

every week a week 和one week的区别

答案

every week “每周”常跟一般现在时连用
如 I play basketball every week.
one week “一周” a week "一周"
for a week 或者for one week都可以,指一周的时间
在指一周几次的时候,a week更常用,如twice a week