birthday复数

　　例句：

　　Not many people keep birthdays in our country.

　　我国庆祝生日的人不多。

　　How many students have their birthdays in June? No one.

　　多少学生在六月份过生日？没有人。

　　Birthdays come around too quickly when one is older.

　　一个人年纪大了生日就会到来得非常快。