看了一篇文章,说得挺好,但是有一点不是很确定 / j: O) J" ^8 j- U; M+ a ) B! J% {3 t* B16. Manage Your Speed # s7 F* ~$ V0 H/ K3 f/ VIf you drive a car with automatic transmission, use cruise control to manage your speed and conserve fuel. 5 N: n5 c' L: W; Q* R T# F1 i * q' \; `7 i8 G: V( Q! u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。/ q, W' K- S- O