1. 表示某人多少岁“生日”，要用序数词而不用基数词。如：
today is my grandfather’s sixtieth birthday. 今天是我爷爷的六十大寿。
2. 注意以下与动词的常用习惯搭配：
celebrate one’s birthday 庆祝生日
observe [keep] a birthday 过生日
complete one’s 30th birithday 满30岁
3. 通常用于祝贺生日的用语。如：
happy birithday to you. 祝你生日快乐。
many happy returns of your birthday. 祝您长寿。
many happy returns of the day. 祝您长寿。
today is my grandfather’s sixtieth birthday. 今天是我爷爷的六十大寿。
2. 注意以下与动词的常用习惯搭配：
celebrate one’s birthday 庆祝生日
observe [keep] a birthday 过生日
complete one’s 30th birithday 满30岁
3. 通常用于祝贺生日的用语。如：
happy birithday to you. 祝你生日快乐。
many happy returns of your birthday. 祝您长寿。
many happy returns of the day. 祝您长寿。
