一方面，二档速度够慢，有利于保持控制，同时又有一定速度，可以保持一定的冲劲。
Second gear is slow enough to maintain control and quick enough to maintain momentum.
但是制造商正在建造更大的、带有速度调整器、容易摘档的发动机。
But manufacturers are building bigger and bigger machines with speed regulators that are easily removed.
但是制造商正在建造更大的、带有速度调整器、容易摘档的发动机。
But manufacturers are building bigger and bigger machines with speed regulators that are easily removed.
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