WIPERS: Are the rubber edges of the wiper blades still sharp enough to remove water and snow in even strokes? If not, they may have been weakened by road grease and wear. Replace them if necessary.

• 刮水器：刮水器的橡皮叶片变得是否锐利，每次动作是否均匀刮掉雨雪?如果不是，可能是因路上油脂和磨损而减弱。必要时应更换。