地球上的生命来自外太空，支持它的理论是撞上南极洲的陨石中发现了氮。
Nitrogen has been found in a meteorite that smashed into Antarctica, bolstering the theory that life on Earth came from outer space.
2004年，一个来自外太空的飞碟，在被雷达锁定追踪和被直升机追逐后，坠落在美国犹它州的沙漠里。
A flying saucer from outer space crash-landed in the Utah desert in 2004 after being tracked by radar and chased by helicopters.
2004年，一个来自外太空的飞碟，在被雷达锁定追踪和被直升机追逐后，坠落在美国犹它州的沙漠里。
A flying saucer from outer space crash-landed in the Utah desert in 2004 after being tracked by radar and chased by helicopters.
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