求翻译：部分司机为了追求“操控感”，常常在开车时不断加减挡，频繁加速和刹车。通用汽车的工程师表示，频繁加减挡会增加车辆油耗，在市区行驶时，超速、加速、刹车等动作会减少5%的行驶里程；而在高速公路上，这个数字高达33%。在日常行车过程中，应尽量保持车辆匀速行驶，避免频繁换挡。适当使用超速挡，也可以有效提升燃油经济性。在高速公路上，超速挡可有效降低发动机转速，省油的同时能减少发动机磨损。是什么意思？

Some drivers in pursuit of "a sense of control", often in the car constantly subtraction block, frequent acceleration and braking. GM engineers said, the frequent addition and subtraction block will increase vehicle fuel consumption in urban driving, speeding, acceleration, braking and other actions

Some of the drivers in order to seek "manipulation" and often with the sense when driving, constantly increase and decrease frequent acceleration and braking. general motors engineers said that frequent block will increase and decrease in the urban areas, and increased fuel consumption vehicles, tra

The partial drivers in order to pursue “hold control the feeling”, when drives frequently adds and subtracts unceasingly keeps off, frequent acceleration and braking.General automobile engineer indicated that, the frequent addition and subtraction keeps off can increase the vehicles oil consumption,

Some drivers in the pursuit of "manipulation", often while driving continuous addition and subtraction, and frequent acceleration and braking. GM engineer says frequently modified retaining increases vehicle fuel consumption, while urban areas are in motion, speed, acceleration, braking and other ac

Some drivers in pursuit of "a sense of control", often in the car constantly subtraction block, frequent acceleration and braking. GM engineers said, the frequent addition and subtraction block will increase vehicle fuel consumption in urban driving, speeding, acceleration, braking and other actions