You'll know, because your car will know, because that other car will have whispered something in his ear, like, "By the way, five minutes, motorcyclist, watch out."
那你就知道了，因为你的车就会知道了，因为 其他的车已经悄悄把这件事告诉它了 打个比方，“告诉你一声，五分钟之后 会出现个开摩托的，注意。”