夏季昼长夜短。

In summer the days are long and the nights short.

《新英汉大辞典》

在昼长夜短的夏季，大家纷纷外出旅游。目前，瑞典已成为世界上外出旅游人数最多的国家之一。

In summer when days are longer, all the people are on their journey. Nowadays, Sweden has become one of the countries boasting greatest number of travelling fans.

youdao

在昼长夜短的夏季，大家纷纷外出旅游。目前，瑞典已成为世界上外出旅游人数最多的国家之一。

In summer when days are longer, all the people are on their journey. Nowadays, Sweden has become one of the countries boasting greatest number of travelling fans.

youdao