One famous example is the travelling salesman problem-finding the shortest route between several cities.
其中一个著名的例子就是推销员旅行问题：找出几个城市之间的最短路线。
他是一个巡回推销员。
Take the travelling salesman problem, for example.
比方说旅行推销员问题。
He used to be a travelling salesman, but now he has a desk job.
他曾经是个到处旅行的推销员，但是他现在坐办公桌了。
Till now, the best published result of Chinese-Travelling Salesman Problem is 15904km.
迄今为止，中国旅行商问题的最优解是15904公里。
Till now, the best published result of Chinese-Travelling Salesman Problem is 15904km.
迄今为止，中国旅行商问题的最优解是15904公里。
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