Ma Ma likewise Chinese chess, and take on other characters but not full, free driving.

马亦同中国象棋的马，走日字但不别足，自在驰骋。

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Fuel cells have long promised pollution-free driving , but have been held back by their enormous cost when applied to a normal car .

燃料电池长期预示着无污染驾驶，但是当它被应用到一辆普通车上时，因其巨额的成本，举步维艰。

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Likewise, automation should eventually boost productivity, stimulate demand by driving down prices, and free workers from hard, boring work.

同样，自动化最终应该提高生产力，通过降低价格来刺激需求，并把工人从繁重、乏味的工作中解脱出来。

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The song is about driving by yourself at night into the unknown and feeling free.

VOA: special.2010.05.28

Cruze Eco offers 42 mpg highway while Volt offers 35 miles of electric, gasoline-free driving and an additional 344 miles of extended range.

ENGADGET: Chevrolet launches MyLink smartphone integration for 2012 Volt and Equinox

We're talking about a headache of a car that will have to be recharged for six hours to give 40 miles of gasoline-free driving.

WSJ: Obama's Car Puzzle

With capacity of 17.6 kWh the lithium-ion battery from the joint venture with Evonik Industries provides for well over 140 kilometres of pollutant-free driving fun.

ENGADGET: Third generation Smart Fortwo ditches Tesla powertrain, gains two wheeled cousin