We meet every three days.

我们每隔两天就会见面。

I go to the gym every three days.

我每隔两天去一次健身房。

He calls his parents every three days.

他每隔两天就会打电话给他的父母。

She waters the plants every three days.

她每隔两天给花浇水。

The doctor advised me to take the medicine every three days.

医生建议我每隔两天服用一次药。

I go shopping every three days.

我每隔三天购物一次.

We have history class every three days.

每隔三天我们上一节历史课.

Debbie phones her mother every three days.

黛比每隔两天给她母亲打次电话.

He comes to see his parents every three days.

他每隔三天来看他的父母一次.

Every three days he comes to see the old man.

他每隔三天来看我们一次。