都是篱笆，FENCE和HEDGE长得有什么不一样呢？

fence是用木板铁丝之类的东西围出的
hedge是用灌木小树之类的东西围出的

下面是伟氏词典上的解释
我就是参考这个跟你说的
fence
2 a : a barrier intended to prevent escape or intrusion or to mark a boundary; especially : such a barrier made of posts and wire or boards b : an immaterial barrier or boundary line *on the other side of the fence in the argument*

hedge
1 a : a fence or boundary formed by a dense row of shrubs or low trees b : BARRIER, LIMIT
2 : a means of protection or defense (as against financial loss)