In summer visitors swamp the island.

夏天，这个岛上游客熙熙攘攘，人满为患。

We used to go sailing on the lake in summer.

从前的夏天，我们经常泛舟湖上。

In summer we have to mow the lawn twice a week.

夏天我们每周得修剪草坪两次。

In summer this hotel is a hugely popular venue for wedding receptions.

夏天，这家饭店是非常受欢迎的婚宴场所。

The population almost doubles in summer, mainly because of the jazz festival.

主要由于爵士音乐节的缘故，在夏季这里的人口几乎比平时多一倍。