同学们,还记得这个故事吗:一只狐狸正在森林中寻找食物,刚好看见一只乌鸦嘴里叼着一块肉,当时,狐狸的口水都流下来了。于是,狐狸就想尽办法让乌鸦唱歌。这只乌鸦太得意了,刚准备唱,那块肉就掉到狐狸嘴里了。几年后,乌鸦和狐狸有了各自的孩子,这时,又发生了一件事——一天,得意 Students, remember this story: A fox is looking for food in the forest, just saw a crow mouth with a piece of meat, when the fox's saliva flow down. So, the fox tried every means to make the crow singing. The crow was too proud, just ready to sing, the piece of meat fell to the fox mouth. A few years later, crows and foxes had their own children, and another thing happened - one day, proud