看了一篇文章,说得挺好,但是有一点不是很确定 1 K8 P, y; G2 G2 C5 M N: h. n/ |1 ^) K* d
16. Manage Your Speed ! x+ d1 T0 n1 ^ b8 P/ LIf you drive a car with automatic transmission, use cruise control to manage your speed and conserve fuel.% Q7 ? U6 L' u
5 C0 o2 V, Q; @* V: O: i
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。9 e! o+ d' x1 r+ D* ~ j