At length the buffaloes turned into a green brake, on the river bank, while the horses dashed up a narrow defile of the hills, with their pursuers close to their heels.

野牛群一直跑到河岸绿草地，总算收住了蹄子，而此刻野马群正从山谷一处狭窄隘口发狂地夺路奔下，后面骑手们紧追不舍，他们离马群愈来愈近。

The railway track wound in and out among the passes, now approaching the mountain–sides, now suspended over precipices, avoiding abrupt angles by bold curves, plunging into narrow defiles, which seemed to have no outlet.

这里的铁路线是顺着西埃拉山脉崎岖的山势铺设的。它忽而贴在山腰，忽而在悬崖上前进，有时为了避免急转弯，它的曲度大得惊人，有时伸入两山对峙的峡谷里，使人颇有" 山穷无路" 之感。