He taught himself to be a pilot. During World War II, he designed a machine used to train military aircraft crews to fire guns at enemy aircraft.
VOA: special.2009.01.14
- Those of you with backgrounds in history or we've seen -- or remember World War II with technologies that were used in it might know of the Enigma machine, which is kind of the same idea.
你们其中有历史背景的人或者我们看到的-,或记得起的第二次世界大战中使用的,可能知道的英格玛装置,那是一种同样的思想。
laundry. We used to have a washing machine and a dryer in our house.
那就是洗衣服。过去我们家有洗衣机和烘干机。
A machine called a press is often used.
VOA: special.2009.09.29
应用推荐