You take eight million trucks -- these are 18-wheelers -- and take them to natural gas, reduce carbon by 30 percent, it is cheaper and it will cut our imports three million barrels.
你们可以用这八百万辆卡车 这些18个轮子的卡车-- 去采天然气 可以减少30%的二氧化碳 这也会更便宜 而且会减少进口 三百万桶石油之多