un.i.den.ti.fied flying object

unidentified-flying-object的音标和读音：
DJ音标发音： [ˌʌnaiˈdentəˌfaid]
KK音标发音： [ˌʌnaɪˈdɛntəˌfaɪd]

unidentified-flying-object的词性：
n.（名词）

1. A flying or apparently flying object of an unknown nature, especially one suspected to have been sent by extraterrestrial beings.
不明飞行物：一个未知性质的飞行或似在飞行的物体，尤指被怀疑由外星人派来的

2. A flying saucer.
飞碟