1846年,就俄勒冈区域界限的争议与英国达成一致。
In 1846, the boundary dispute with Great Britain over the Oregon Territory was finally settled.
然而,阿德霍尔德的信并没有给家人带来团聚,而是揭示了该地区存在的一种分歧。该地区有9700名学生,而且基本上是按种族界限划分的这个区域。
But instead of bringing families together, Aderhold's letter revealed a divide in the district, which has 9,700 students, and one that broke down roughly along racial lines.
在许多半干旱的地区中,同样存在树带界限的下限区域;在这片区域之内,由于缺乏水分,森林下沿区域的植被通常会逐渐变成干草原或沙漠。
In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.
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