6个女孩可以怎么说英语

"Six girls" can be said in Engpsh as:

"There are six girls."
"There are six young ladies."
"Six females are present."
"There are half a dozen girls."
"There are six female individuals."

Note that "girls" is a common and acceptable term to refer to young females, but you may also use more formal terms pke "young ladies" or "female individuals" if you prefer. It's important to use language that is respectful and appropriate for the context and the people you are speaking with.