________________________Let's say you don't have a formal enemy. But what if you have a friend who treats you badly? People around you might say, "With a friend like that who needs enemies?" This expression means that if a friend treats you badly, they behave as an enemy. It also means you should get another friend.___________________________我们来说说你没有一个正式敌人的情况.但如果你有个一对你不好的朋友呢?你周围的人可能说:"有那样一个朋友,要敌人来干嘛?"这个短语表达的意思是,如果一个朋友对你很不好,他们就像你的敌人.这样意味着你应该换个朋友了.