看了一篇文章,说得挺好,但是有一点不是很确定 ! N; O, g( S. N, R1 ~1 g4 d& P- ~0 C. O) \- J- \0 k; g( f' }2 f
16. Manage Your Speed1 C' B# m& A/ w1 R" Z8 M
If you drive a car with automatic transmission, use cruise control to manage your speed and conserve fuel.. s9 G$ y' }& H' a" N7 Q
4 g/ h, i4 b* I/ }* g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。) s* k0 | ~- K4 o [- U