Ice missile is a chunk of ice that flies off the roof of a moving vehicle. 

“冰弹”指的是从移动的车辆顶部飞落的大块儿冰块。

Anyone who lives or drives regularly in one of the cold-weather states has probably observed the phenomenon: A massive chunk of ice becomes dislodged from the top of a truck or car up ahead and hurtles your way. 

居住在寒冷地带，或常在这些地区开车的人们可能会注意到这样一个现象：突然有一大块冰从前面的卡车车顶或汽车车顶飞落，挡住了你的去路。

"The slow-motion nightmare" is what Connecticut State Rep. Lawrence Cafero, a Republican from Norwalk, calls it. 

来自美国康涅狄格州诺瓦克的共和党人劳伦斯-卡费罗称之为：“慢镜头噩梦”。

"You're driving in the center lane, a day or two after a snowstorm," he says. "Ice on vehicles is starting to melt. You're driving 60 mph, with cars on the left, cars on the right. All of a sudden, you see this sheet of ice do this Olympic dive off the top of a truck in front of you. You can't go left, you can't go right. You just pray to God it doesn't hit you." 

他说：“你正在中间车道行驶，一两天前刚有一场暴风雪。车顶的冰块开始融化。你的车时速在60英里，左右车道都有车辆。突然，你前面的卡车车顶飞速掉下一大坨冰块。你没法左拐也不能右拐，只能向上帝祈求不要撞上。”