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第一招:确保发动机状态良好。因为不论问题大小,发动机都会降低效率,浪费你的汽油。要记住按时换机油,能减少引擎内部的摩擦。
The first one: Make sure the engine is in good condition. Because regardless of the size of the problem, the engine will reduce efficiency and waste your gas. Remember to change the oil on time to reduce the friction inside the engine.