No serious hill walker would rely totally on a GPS device in case the power goes or the signal is lost, so it should be the same for the motorist,added Sinclair.
No serious hill walker would rely totally on a GPS device in case the power goes or the signal is lost, so it should be the same for the motorist,added Sinclair.
辛克莱说：“没有哪个正儿八经登山的人会完全依靠GPS设备，以防出现没电或失去信号的状况，这对于开车的人来说应该是一样的。”