先春天，后夏天。

First comes spring, then summer.

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夏天，我们回到加拿大后，在黎明时分重游了这个湖。

In the summer, when we returned to Canada, we revisited this lake at dawn.

《柯林斯英汉双解大词典》

七年级后的那个夏天，学生们要在大学校园里待上三周，每天学习七个小时的高等数学。

The summer after 7th grade, students spend three weeks on a college campus studying advanced math for seven hours a day.

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