Soils in eastern Oregon are relatively low in organic carbon, and research is under way to prevent further losses.
俄勒冈东部的土壤所含的有机碳相对较低，因此科学家正在开展研究，防止有机碳进一步流失。
Its western range now extends to Oregon, but in the eastern United States the white-tailed kite remains a bird of the South.
鹞鹰的活动区域往西延伸到俄勒冈州，但是在美国东部白尾鹞鹰仍只是一种南方鸟类。
Its western range now extends to Oregon, but in the eastern United States the white-tailed kite remains a bird of the South. Normally, South Carolina marks its northern limit.
白尾鸢的活动范围一般不会跨越西部不俄勒冈州，在美国的东部，人们将白尾鸢看作一种只能生活在南部的鸟类——白尾鸢的活动范围不会超出加利福尼亚州的南部。
Mark was on an airplane when he wrote it, leaving Oregon for his Army post on the eastern seaboard. In simple, transparent words, he put his heart on paper, and mailed it off to me.
马克是在飞机上写的，他正离开俄勒冈州到东海岸担仟军职简单坦诚的文字，他把自己的心付诸纸上，然后寄给我。
A city of central Oregon at the eastern foot of the Cascade Range east of Eugene. Lumbering and tourism are important to its economy. Population, 20, 4 '9.
美国俄勒冈州中部城市，位于尤金以东的喀斯喀特山麓的东部。伐木业和旅游业为其重要经济支柱。人口20,4 ' 9。
A city of central Oregon at the eastern foot of the Cascade Range east of Eugene. Lumbering and tourism are important to its economy. Population, 20, 4 '9.
美国俄勒冈州中部城市，位于尤金以东的喀斯喀特山麓的东部。伐木业和旅游业为其重要经济支柱。人口20,4 ' 9。
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