The sisters are believed to suffer from a condition known as dicephalic parapagus - an extremely unusual form of twin conjoinment where only a single body develops.
就了解，这对姐妹患有所谓的“双头畸胎”症，是两胎连体结合到一起的一种极端现象。
youdao
应用推荐
模块上移
模块下移
不移动