It means, route data is not available in our database, but the calculator still can use award chart to calculate required mileages of direct route.
浅灰色奖励，表示在我们的资料库中找不到可以飞行的路线，但可以从兑换表中计算出直飞所需的哩程。
2
Last week, I was in a taxi and found out the driver took the long way to the place I wanted to go and tried to put more mileages on the meter, so he can charge me more.