1.
XiaoMing was riding his bike when the UFO took off.
不明飞行物起飞时,小明正在骑自行车.
2.
an unidentified flying object
不明飞行物体,飞碟((或称飞碟等; 略作 UFO))
3.
The Scientific Study of Unidentified Flying Objects
不明飞行物的科学研究
4.
No, it can not be a UFO .
不，不可能是个不明飞行物。
5.
Is that a UFO in the sky ?
天上那东西是不是个不明飞行物?
6.
The witnesses claimed to have seen a UFO flying across the sky.
目击者们声称看到了一只不明飞行物飞过天空。
7.
an outlandish glow came from the UFO.
从不明飞行物上发出奇特的光。
8.
Some people were reported to have seen Unidentified Flying Objects .
据报道，有人看见了不明飞行物。
9.
An unidentified flying object appeared on the radar screen.
一个不明飞行物出现在雷达荧屏上。
10.
UFOs are often explained as supernatural.
不明飞行物常常被解释为超自然现象。
11.
What were you doing when the UFO landed?
当不明飞行物着陆时，你正在干啥？
12.
Believe it or not, Jeff says he saw a UFO last night.
信不信由你，杰夫说他昨晚看到了不明飞行物。
13.
UFOs do not represent a direct physical threat to national security.
不明飞行物并不意味着直接威胁到国家安全
14.
As a group, we know virtually nothing about UFO.
总的来说，我们对不明飞行物几乎一无所知。
15.
I was shopping when the alien got out of the UFO.
当外星人走出不明飞行物时,我正在买东西.
16.
He reported seeing a UFO himself several years ago.
他报告几年前自己亲眼看到一不明飞行物。
17.
Some people believe we are bound to see UFO sooner or later.
一些人认为，我们早晚肯定会看到不明飞行物。
18.
The children wanted to enlarge on what he had said shout the unidentified flying objects.
孩子们想让他详细说说他谈的那种不明飞行物。