Two horses were walking back to the paddock after a day's training。One said to the other，“I can't understand why we are so slow，we come from good stock，we have the best food，great trainers，and yet we come last in every race。”
There was a dog running along side who overheard and said，“I know what your problem is。I have seen you race and it looks to me as if you race off at the start really fast and use up all your energy and then you have nothing left。What you should do is pace yourselves and when all the other horses are tuckered，put in a spurt and you're sure to win。What do you think of that？”
The horses looked at one another and said“WOW，a talking dog！”
一天的训练结束后，两只马走回牧场。其中一只对另外一只说：“不知道为什么咱们走得这么慢啊，咱们可是良种啊，咱们吃的最好，有最好的训练师，可是每次比赛都倒数。”
一只狗无意中听到了这句话，说：“我知道你们的问题在哪儿。我看过你们比赛，好像每次最开始你们都跑得非常快，把能量都用光了。你们应该在最开始慢慢地跑，等到其他的马都跑累了，你们就瞬间爆发，这样肯定会赢。你们觉得如何？”
两只马互相看了看，说：“哇，一只会说话的狗！”
1.stock n。进货，库存品，存货
There is not much stock in the shop right now。（目前店里存货不多。）
2.overhear v。偶然听到，无意中听到，偷听
I happened to overhear what he said。（我碰巧听到了他所说的话。）
3.tucker v。使疲倦，使衰弱
1.use up 用完，耗尽
We have used up all the paper。（我们把纸全用完了。）