We're going to the beach for vacation.

我们要去海滨度假。

Summer time is usually good for vacation.

夏天是度假的好时节。

We're going to a beach for vacation.

我们准备去海滨度假。

What are you doing for vacation?

假期你要干什么?。

What are they doing for vacation?

他们假期准备干什么？