有一白一黑两匹马,其中白色的是千里马,天生就拥有强壮的体魄,另外一匹黑色的马稍微差一些。两匹马一块给主人干活。由于主人收入不稳定,所以给它们的食物有时好,有时就坏。于是,白千里马根据食物的好坏来决定奔跑速度,吃得好就跑快些,食物不好的时候就不是那么用力。但另一匹黑马则一心一意,不管主人给的食物怎么样,每次都会用力跑。慢慢地主人发现,那匹白马有时跑得快,有时跑得慢,而黑 There is a white and a black two horses, of which the white is the Maxima, born with a strong physique, the other a little dark horse somewhat. Two horses to work for the owner. Because of their unstable income, the food they give is sometimes good and sometimes bad. As a result, Baiximaru according to the quality of food to determine the running speed, eat faster run faster, not good when the food is not so hard. But another dark horse is wholeheartedly, no matter how the owner to the food, every time hard to run. The owner slowly discovered that the white horse sometimes ran faster, sometimes slow, and black