flying saucer

例句：

1. 1. The mysterious flying saucer landed in the deserted town.
   这个神秘的飞碟降落在了荒无人烟的小镇上。
2. 2. The government has been investigating a flying saucer crash site.
   政府一直在调查一个飞碟坠毁地点。
3. 3.Some people believe that flying saucers are extraterrestrial spacecraft.
   有些人相信飞碟是外星飞船。