我们家有四口人，一个是婴儿。

There are four people in our family, and one is a baby.

youdao

我们家有四口人，我父母，我哥哥和我。

We have four, my parents, my brother and I.

youdao

我们家有四口人，我的爸爸，妈妈，弟弟和我。

There are 4 people in my family, my father, mother, younger brother, and myself.

youdao