看了一篇文章,说得挺好,但是有一点不是很确定 - e+ U4 X1 J: k 2 Y3 _6 N2 M: a: P16. Manage Your Speed ; x3 x2 c" j+ Y# PIf you drive a car with automatic transmission, use cruise control to manage your speed and conserve fuel.9 v' E) w% C+ ^, T4 U
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文章说用自动巡航省油,但是我记得有人说自动巡航费油。大家评论一下。! v7 b1 q ^. a! x' t4 m