Dr. D started up the motor and roared off.

D博士启动了马达，呼啸而去。

They bought energy snacks, then they jumped into their massive polluting machines, pushed them into gear and roared off into the murk that passes for morning.

他们买了能量零食，然后跳进了巨大的污染机器，将它们推入齿轮，咆哮着进入了早晨的黑暗。