You remember the first time we dropped gears in this one 还记得我们第一次开这个车的情景吗？
2.
The ramp shift test on one heavy truck with amt was done , and the test results showed that by dropping gear continuously or discontinuously , the proper gear could be found eventually when the vehicle was running on ramp , though the original gear might be improper 试验结果表明，车辆在坡道行驶过程中，虽然初次选择的挡位不一定能适应该坡道，但通过连续降挡或跳跃式降挡最终总能选择适合于该坡道的挡位。
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