bithday可数吗

可数啊
Tom have baked a super large cake for Jane's birthday. He says it is for all her future birthdays.

可数，但一般都用做单数的，因为每个人只有一个生日嘛

bithday少了个r birthday 生日：是不可数名词

绝对可数.
如果不可数,那说明两人是同一天生的.

可数