双胞胎用英文怎么说说

双胞胎的英文单词是"twin"，来源于古英语"twinn"，意思是双生子。

例句：

She's having twins. (她怀上了双胞胎。)
They are identical twins. (他们是同卵双胞胎。)
My sister is a twin, but her twin brother passed away. (我姐姐是个双胞胎，但她的双胞胎兄弟已经去世了。)