I have an apple.我有一个苹果.
You have an apple.你有一个苹果.
He/she has an apple.她/他（或者随便一个除了你和我之外的人）有一个苹果.
have has两个单词的不同用法,理解能力比较差,请简单举例说明
I have an apple.我有一个苹果.
You have an apple.你有一个苹果.
He/she has an apple.她/他（或者随便一个除了你和我之外的人）有一个苹果.