我家有三口人，我妈妈，我爸爸和我。

There are three people in my family, my mom, my dad and me.

youdao

很乐意，我家有三口人，我父母和我。

With pleasure. There are three in my family, my parents and I.

youdao

我家有三口人，他们是爸爸、妈妈和我。

There are three people in my family. They're father, mother and I.

youdao