birthday是可数名词。
birthday：
n.生日。
复数： birthdays.
扩展资料
I completely forgot her birthday, what with one thing and another.
因为忙得不可开交，我把她的生日忘得一干二净。
Were getting up a party for her birthday.
我们正在筹备她的生日聚会。
Are you having a big do for your birthday?
你打算举行大型生日宴会吗？
What did you get for your birthday?
你收到什么生日礼物了？
The birthday card arrived three days late.
生日贺卡晚到了三天。
