| 释义 |
Oregon TrailNONE（无词性）- A historical overland route to the western United States extending from various cities on the Missouri River to the Oregon Country and later Oregon Territory. The trail was opened in 1842, and by 1845 more than 3,000 migrants had made the arduous journey. After the coming of the railroad, the trail fell into disuse and was finally abandoned in the 1870's.俄勒冈小径：通向美国西部一条具有历史意义的移民路线，从位于密苏里河的各个城市延伸到俄勒冈地区后至俄勒冈专区。1842年该路线开放，到1845年3000多名移民已走过这段艰难历程，19世纪70年代铁路开通后这条路线渐弃不用终至完全废弃
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