您要查找的是不是：
- Roever, F., "History of the Helicopter Engineering Division, McDonnell Aircraft Corporation," Journal of the American Helicopter Society, vol. 楼“的历史直升机工程部，麦克唐纳飞机公司”杂志美国直升机学会，第二卷。
- Journal of the American Helicopter Society 《美国直升机学会志》
- American Helicopter Society 美国直升机协会
- The biggest is the fate of an American helicopter base on Japan's southern island of Okinawa. 其中最受关注的就是，未来美国在冲绳岛的直升机基地将何去何从？
- In an interview this week in Helmand General Sir Richard Dannatt, the outgoing head of the army, noted that he was flying in an American helicopter because a British one was not available. 将要退役的赫尔曼德丹纳特将军在本星期的一次接受媒体采访中提出：他驾驶了一架美军直升机，因为英军一架也无法获得。
- An American attache helicopter opened fire on them. 一架美国专属直升机向他们开火。
- Bill Gates is an American citizen. 比尔·盖茨是美国公民。
- He works at the American Embassy in Moscow. 他在莫斯科的美国驻俄大使馆工作。
- The American market turned roundsharply a week ago. 美国证券市场於一周前急遽反转。
- The Nestor or American philosophy. 美国哲学界中的耆宿。
- American girls are often very pretty. 美国女孩多很漂亮。
- Many American are couch potatoes these days. 现在许多美国人都是电视迷。
- American civilization differs from ours. 美国的社会和生活方式和我们的不同。
- It was for the American Cancer Society. 而是捐给美国癌症协会
- American people use the word "fall" to mean autumn. 美国人用"fall"这个字来表示秋天。
- He is an American of French ancestry. 他是法国血统的美国人。
- The theory was advanced by an American professor. 该理论系一位美国教授提出的。
- He is well read in American history. 他通晓美国历史。
- He landed a job in a large American corporation. 他在一家美国大公司谋得一职。
- American young people would rather get advice from strangers. 美国的年轻人宁可从陌生人那里获取咨询。
