他们在阳光灿烂的下午去了海滩。

They went to the beach on a sunny afternoon.

在一个阳光灿烂的下午，我看见一封盖有科罗拉多州邮戳的厚厚的信在我的邮箱里，信里告诉我说，我已经成为了一个军事院校的学生了。

On one sunny afternoon, I saw a thick letter with a Colorado postmark in my mailbox. I was now a cadet at the Academy.