A hiker has been seriously hurt somewhere in a 10-mile-by-10-mile-square area.
A hiker has been seriously hurt somewhere in a 10-mile-by-10-mile-square area.
已知有一位徒步旅行者受了重伤，人在边长10公里的正方形区域中，不能行动。
A hiker has been seriously hurt somewhere in a 10-mile-by-10-mile-square area.
已知有一位徒步旅行者受了重伤，人在边长10公里的正方形区域中，不能行动。