1、生日的英文单词是birthday。作名词意思是生日。
2、用作名词 (n.)I received a set of gardening tools on my birthday.生日那天，我收到一套园艺工具。
3、He gave her an expensive fur for her birthday.他送给她一件昂贵的毛皮衣服作为生日礼物。
