has啥意思是什么意思

　　The dog has worms.

　　这条狗体内有寄生虫。

　　The dog has fleas.

　　这条狗有跳蚤。

　　Just as John has changed, so has his wife.

　　正如约翰已经变了，他妻子也变了。

　　It has now become evident to us that a mistake has been made.

　　我们已经清楚出了差错。