有时，决定另起一段就像开汽车换档一样是一种本能的活动。
Sometimes the decision to begin a new paragraph almost becomes a matter of instinct that might be compared with shifting gears on an automobile .
一些汽车的驾驶员用脚踩踏板来松开离合器，然后再用变速杆来换档。
In some cars the driver has to step on a pedal to release the clutch, then shift the gears with a lever.
换档控制是汽车自动变速技术中的重要部分。
Shift control is an important component of the automatic gearshift technique on vehicle.
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