ufo [ˌju:ef'oʊ]

例句:

• There has been a surge of UFO sightings in America.
  美国不明飞行物目击事件激增。
  
• Did you actually see the UFO?
  你真的见到不明飞行物了 吗 ?
  
• Have any of you actually seen a UFO?
  你们中间是不是有人确实看到过飞碟?
  
• It suggests that UFO's are extraterrestrial in origin.
  来自SA
• Things like UFO's what is the government hiding?
  来自SA
• Please remember that the U in UFO means unknown.
  来自SA