光信号闪红灯?三步急救法省100维修费!红灯光信号故障?三步急救法教你省下百元维修费
Is the light signal flashing red? Three-step first aid method saves 100 yuan in repair costs! Red light signal malfunction? The three-step first aid method teaches you to save a hundred yuan in repair costs
以上为机器翻译结果，长、整句建议使用 人工翻译 。