“老马识途”这个成语用来比喻有经验的人，熟悉情况，办事效果好。

　　An Old Horse Knows the Way

　　In the Spring and Autumn Period, Duke Huan of Qi led an army to attack a small state in the north. They went in spring when green grass covered the ground. But when they came back it was winter. Everywhere was white with snow and the wind was howbing. The troops lost their way. While everybody was worrying, Guan Zhong, the Duke"s chief minister, suggested:"An old horse may know the way." So the duke ordered several old horses to be selected to lead the army. Finally, they found the way back home.

　　This idiom refers to the value of experience.

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