he says he's just arrived in aXXX

问题描述:

he says he's just arrived in aXXX
这里的he's是he is 还是 he has 麻烦请给解释以下语法和语态

he has
he has just arrived,表示他刚刚已经到达了(现在完成时)
而如果是he is just arrived就只能翻译成“他被到达”(被动语态),这是翻译不通的.