看了一篇文章,说得挺好,但是有一点不是很确定 ^; n+ t: i8 u( M$ h4 i
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16. Manage Your Speed # C- h* v" a# T, m9 L! ~; eIf you drive a car with automatic transmission, use cruise control to manage your speed and conserve fuel. : E$ e7 V x2 j1 V% R; i# B ' B1 a2 n. G7 b/ z1 R; c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。8 H8 {7 p- f6 P' H- F( Q% J