我的妹妹的名字叫桑迪，她在七年级。

My sister's name is Sandy. She is in Grade Seven.

youdao

我有一个小妹妹。她的名字叫莉莉。

I have a little sister, her name is lily.

youdao

我的名字叫xxx，家里的成员有爷爷、爸爸、妈妈、哥哥、妹妹和我。

My name is XXX. My family consists of grandpa, Dad, Mom, elder brother, younger sister and me.

youdao

我的名字叫xxx，家里的成员有爷爷、爸爸、妈妈、哥哥、妹妹和我。

My name is XXX. My family consists of grandpa, Dad, Mom, elder brother, younger sister and me.

youdao