This centres on a night-time "hit-and-run" accident involving a cab in a town where there are just two cab operators-one with green cars, the other with blue.
一个城镇中发生一起出租车夜间肇事逃逸案，这个城镇只有两家出租车公司营运：一家的车子是绿色的，数量占所有出租车总数的85%，另一家的车是蓝色的，占15%。
This centres on a night-time "hit-and-run" accident involving a cab in a town where there are just two cab operators-one with green cars, the other with blue.
一个城镇中发生一起出租车夜间肇事逃逸案，这个城镇只有两家出租车公司营运：一家的车子是绿色的，数量占所有出租车总数的85%，另一家的车是蓝色的，占15%。
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