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1·At that rate, a one-mile stretch of four-lane highway could power about 500 homes.

以这样的速率，一段1英里4车道的公路段将可以为500个左右的家庭供电。

2·The structure comprises several arching waves of reinforced concrete, which support a four-lane highway.

结构由几个钢筋混凝土波浪状拱构成，支撑起一条四车道的公路。

3·But when he reached a four-lane highway with gentle curves, good visibility and little traffic, I just about fell asleep and ran off the road... Lulled by safety, I'd acted more dangerously.

但是当他行至一条笔直的4车道，两旁风光旖旎，路上车辆很少，“那时我几乎快睡着了，差点驶下公路……我被安全感骗了，那让我的驾驶更不安全。”

4·In another, our guess was that he was passed out (a peasant, on a four-lane rural highway in Yunnan), but on a road so busy that he was certain eventually to be hit.

另外一次，我们的猜测是他昏过去了(一个农民，在云南的一个四车道的乡间高速路上)，但是在一个车这么多的路上他肯定要被撞的。