求翻译：我叫张博文，我有一个笔友叫John，她从小生于澳大利亚，现在有14岁了，她她现在住在悉尼，她的家庭由5个成员组成，她、她妈妈、她爸爸、和一个姐姐一个妹妹。是什么意思？

My name is Zhang Bowen, I have a pen pal called John, she is from a niche to Australia, there are now 14 years old, she now lives in Sydney, is composed of 5 members of her family, she, her mother, her father, a sister and a younger sister.