While better fuel-efficiency is good news for Americans' wallets and less driving good for the country's air, for its highways and mass-transit systems, it is something of a disaster.
虽然,更高的燃油效率能节省美国人的经济支出,少驾车也有利于改善美国的空气质量,但这对美国的高速公路和公共交通系统却可以说是一种灾难。
First of all, more cycling and less driving.
首先,多骑车,少开车。
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