every week \a week 和one week的区别

every week \a week 和one week的区别

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

every week 的意思是“每周”
one week 的意思是“一周”
a week 的意思也是“一周”
a week 比 one week 常用