In the United States, it can mean an officer in the Army, Air Force or Marine Corps.

在美国，它可以指陆军、空军或海军陆战队的长官。

On May 13th, 1945, a US Army Air Force C-47, nicknamed the Gremlin Special, crashed into a mountainside, in what is now known as the Shangri-La Valley in New Guinea.

在1945年5月13日 一架名为 Gremlin Special 的美国空军 C-47 飞机撞上山腰，也就是现在的新几内亚 Shangri-La 山谷。

They spend a lot on their military, have very well-trained armies, air forces and navies, and would be welcome into the bloc to shore up the security alliance in this part of northern Europe.

两国在军事上花费很多，拥有训练有素的陆军、空军和海军，成员国欢迎其加入欧盟，以加固北欧这一地区的安全联盟。