经验是最佳老师,只是授业费太昂贵了。 有这样一则故事:一只狼躲在山洞里等待着猎物的到来,但好长时间过去了,也未见猎物的踪影,狼想:这一定是陷阱布置得缺少诱惑力。于是它采集了一些鲜嫩的青草,沿路一直撤到洞里。狼继续躲在洞里,等待猎物。果然,一只山羊吃着青草走了过来, Experience is the best teacher, but the tuition fees are too expensive. There is such a story: a wolf is hiding in the cave waiting for the arrival of prey, but after a long time passed, there is no sign of prey. The wolf thinks: This must be a trap and it lacks allure. So it collected some fresh green grass and drew it along the way to the hole. The wolf continued to hide in the cave and wait for prey. Sure enough, a goat came to eat grass and came.