动物成语：黔驴技穷英语成语故事

　　In ancient times there were no donkeys in Guizhou province. Somebody brought a donkey from somewhere and tied it to a tree at the foot of a mountain.

　　A tiger saw the donkey, and thought that it must be a fearsome monster. It hide behind a tree and spied on the donkey.

　　When the donkey brayed , the tiger was frightened, thinking that the donkey was about to devour it. After a while, seeing that the donkey had not moved, the tiger approached it and teased it. The donkey became angry, and kicked the tiger.

　　The tiger thought to itself: "Its then all it is capable of?" It then jumped on the donkey and ate it.

　　This idiom is used to mean that one has exhauseted one's skills.