The badmen of the old west usually died in their boots . 旧时美国西部受人雇佣的刺客总是不得好死。
The american western frontier in films is not really the frontier of historical fact . 电影中的美国西部边疆与历史事实大相径庭。
Such machines could be used only on the large, flat, labor-deficient farms of the western u.s. . 这种机械只能在大型、平整、缺少劳力的美国西部农场上使用。
The american west may have accommodated thousands of rugged individuals spread over the vast frontier . 美国西部可能已经收容了遍布广阔边疆上数以千计的颠沛流离者。
In loessal regions and alluvial valley fills of the western united states, both surface soil and subsoil are commonly friable . 在美国西部黄土区和冲积河谷里，表土和底土一般是容易破碎的。
Volcanic activity has been responsible for large chunks of surface morphology in the western states, alaska, and hawaii . 火山活动是形成美国西部各州，阿拉斯加州和夏威夷州大片地形的主要原因。
An extensive farm , especially in the western united states 尤指美国西部的大农场
The origin and development of novels on american west 美国西部小说的起源与发展
Heavy snow is already blowing across the western us 大雪已经席卷了整个美国西部。
Climatological information for western part of united states 美国西部各地气候资料
