22-02-14 在观看精彩的速滑比赛时，你可能会注意到一个小细节，那就是运动员几乎个个佩戴眼镜。你知道这是为什么吗？ The reasons skiers and snowboarders don goggles or glasses might seem a little obvious, especially if youve ever hit the slopes yourself. Sunlight r...