谁给我翻译一下这句话？

画蛇，就要象一条蛇；添上脚，就成了“四不象”。做任何事情都要实事求是，不卖弄聪明，不节外生技。否则，非但不能把事情做好，反而会把事情办糟。

Draw snakes, like a snake, Add feet to become "four like". Do anything to be realistic, don't seem wiser, no quarter exogenous. Otherwise, not only can make anything, but will make things worse.

Drawing sankes means that we should draw something like a snake,but if we add feet to it,which becomes nothing.Thus,no matter what we do,we should be realistic and we should not show off or add more useless things.Otherwise,we can't do things well,and we will make anything worse.