美国有线新闻 CNN 五角大楼正式发布3段UFO影片

Which of these stories made headlines in 1947? Flying Saucers Seen in Washington, Communism Declared in China, Barbie Doll Makes Debut¹, or First Corvette Introduced? A civilian² pilot named Kenneth Arnold said he saw flying objects that a reporter mistakenly called flying saucers.

For decades, the U.S. military has been studying aerial encounters with unknown objects, aka UFOs. This week the Pentagon released three videos that were recorded during U.S. Navy training flights and they apparently³ show mysterious airborne objects captured by the planes infrared⁴ cameras.

One of the recordings⁵ was made in 2004. A pilot who saw that object said it moved rapidly in ways he couldn't explain. The other two clips were captured in 2015 and in one of those a pilot can be heard saying the object is a drone. So was it? The Pentagon says whatever was recorded remains⁶ unidentified and it didn't give any hints as to what it thinks the objects might have been.

The reason the military officially released the videos yesterday after they had been published without permission by other organizations, was to help clear up public debate over whether the videos were real and if there's any more to them. The military also wants to encourage pilots to report anything strange they see because any unauthorized object in the sky can be dangerous to aviators⁷ and U.S. military operations.

1 debut   

n.首次演出，初次露面

参考例句：

• That same year he made his Broadway debut, playing a suave radio journalist.在那同一年里，他初次在百老汇登台，扮演一个温文而雅的电台记者。
• The actress made her debut in the new comedy.这位演员在那出新喜剧中首次登台演出。

2 civilian   

adj.平民的，民用的，民众的

参考例句：

• There is no reliable information about civilian casualties.关于平民的伤亡还没有确凿的信息。
• He resigned his commission to take up a civilian job.他辞去军职而从事平民工作。

3 apparently   

adv.显然地；表面上，似乎

参考例句：

• An apparently blind alley leads suddenly into an open space.山穷水尽，豁然开朗。
• He was apparently much surprised at the news.他对那个消息显然感到十分惊异。

4 infrared   

adj./n.红外线(的)

参考例句：

• Infrared is widely used in industry and medical science.红外线广泛应用于工业和医学科学。
• Infrared radiation has wavelengths longer than those of visible light.红外辐射的波长比可见光的波长长。

5 recordings   

n.记录( recording的名词复数 )；录音；录像；唱片

参考例句：

• a boxed set of original recordings 一套盒装原声录音带
• old jazz recordings reissued on CD 以激光唱片重新发行的老爵士乐

6 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

7 aviators   

飞机驾驶员，飞行员( aviator的名词复数 )

参考例句：

• Analysis on Sickness Status of 1149 Aviators during Recuperation. 飞行员1149例疗养期间患病情况分析。
• In America the whole scale is too big, except for aviators. 在美国整个景象的比例都太大了，不过对飞行员来说是个例外。