他在十五岁生日时收到了一辆车。

He received a car on his fifteenth birthday.

youdao

他十五岁生日时得到了两个生日蛋糕。

He got two birthday cakes on his fifteenth birthday.

youdao

上周，我和我的朋友在我十五岁生日宴会上度过了一段好时光。

Last week, I spent good time with my friends on my fifteenth birthday.

youdao

I did a performance there for Prince Philip's 75th birthday, which was 15 years ago, actually.

我为菲利普亲王的七十五岁生日表演过，这是十五年前的事了。

记忆犹新的作品 - SpeakingMax英语口语达人