我每四周(每隔三周)回家一次。

I go home every four weeks.

youdao

我每隔三周去图书馆一次。

I go to library every fourth week.

youdao

我们每隔两三周去看爷爷一次。

We go to see grandpa every three or four weeks.

youdao

每隔一周的星期三有一个烹饪之夜。

Every two weeks, on Wednesday there is a Cooking Night.

youdao

他每三周(每隔两周)见到他的女朋友一次。

He sees his girl friend once every three weeks.

youdao

他每三周(每隔两周)见到他的女朋友一次。

He sees his girl friend once every three weeks.

youdao