Father: But your mother has had twins. You've got a baby brother and a baby sister.
父亲:但是你妈妈生了双胞胎,你有一个小弟弟和一个小妹妹。
You've got a baby brother and a baby sister.
你有一个小弟弟和一个小妹妹。
Now Benjamin was the baby brother, so he didn't know much about this. But those 10 older brothers saw that new coat Joseph had, and they were very upset.