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1·Two geologists discovered that about half of the sand from the Grand Canyon was actually once part of the Appalachian Mountains.

两位地质学家发现，约半数的来自大峡谷的沙子实际上曾经是阿巴拉契亚山脉的一部分。

2·In this case, Uranium-Lead Dating was used to establish that half of the sandstone in the samples was formed at the same time the granite in the Appalachian Mountains was formed.

在这种情况下，铀铅定年法被用来确定样本中一半的砂岩是在阿巴拉契亚山脉花岗岩形成的同时形成的。

3·I am now about to enter Pennsylvania; and the Appalachian mountains lie ahead.

我现在就要进入宾夕法尼亚州了，阿巴拉契亚山脉就横贯在前面。

4·Bluegrass is so moving and comes directly from the Settlers in the Appalachian mountains.

莓系属的牧草（直译）非常静人，并直接去淌于阿帕推契山脉的订居者。

5·The two main mountain ranges in American are the Appalachian mountains and the Rocky mountains.

阿巴拉契亚山脉和落基山脉是美国的两座大山脉。

6·The pressure of the collision between North America and Africa gave rise to the Appalachian Mountains.

的压力之间的碰撞北美和非洲引起了阿巴拉契亚山脉。

7·A city of northeast Alabama in the foothills of the Appalachian Mountains east-northeast of Birmingham.

美国亚拉巴马州东北部一城市，位于伯明翰东北偏东阿拉巴·契亚山脚下。

8·STEVE EMBER: the difficulty of traveling through the Appalachian Mountains had kept many people from going west.

史蒂夫·恩伯：由于穿越阿巴拉契亚山脉困难重重，这就阻碍了人们西进的步伐。

9·Huge fields of gas shale are believed to lie under the Appalachian Mountains, Michigan and the south-central states.

在阿巴·拉奇亚山地区、密西根州和中南部几个州被认为有丰富的气页岩存在。

10·Taking off from an Atlantic coast airport , the plane is soon flying over the gentle slopes of the Appalachian Mountains.

飞机从大西洋沿岸的一个机场起飞后，不久便飞越阿马拉切亚山脉平缓的山坡。