Until a railroad could be built, supplies were carried west in wagons pulled by horses or oxen.

在铁路修成之前，运往西部的物资都是通过马车进行的。

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They crossed the broad plains of the West in covered wagons.

他们乘着大篷车穿过了辽阔的西部平原。

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Until a railroad could be built, supplies were carried west in wagons pulled by horses or oxen.

VOA: special.2009.05.28

Isn't that when the cowboys and Indians were out there in the Old West in the covered wagons?

那个时代的美国西部不是还有,载着牛仔和印第安人的四轮马车吗

耶鲁公开课 - 金融市场课程节选

Three families, with only a few wagons and oxen as possessions, head West on the high desert in 1845, led by a garrulous but evasive tall-tale artist named Stephen Meek (Bruce Greenwood), who may or may not be taking them to a beautiful valley in Oregon.

NEWYORKER: Meek's Cutoff

There was a time, less than two centuries ago, when the only trains heading west from Chicago were composed of wagons carrying groups of traders, prospectors and missionaries seeking their fortunes or their freedom in frontier outposts.

BBC: Five unforgettable rail journeys