every second week every two weeks 有什么区别

every second week every two weeks 有什么区别

不相等.every scond week是每隔一周,必须发生在第二周.
every two weeks是两周中任何时候都能发生.

每个第二周,每两个星期

every second week每隔两周
every two weeks 每两周，就是隔一周一次