复数： sightings

And we can 't control when or where a sighting occurs .

而我们也无法控制何时何地会有目击发生.

Is that a real ufo sighting and what will be its implication ?

那是真实的ufo目击吗？其含义是什么？

Japanese astronomers report sighting of a comet .

日本地理学家申报发现了新的彗星.

Recent sighting : nothing really since february .

最近流行情况：2月份之后没有真正流行过。

Twitter messages breathlessly report sighting him in his habitual hoodie and shades .

推特上有关看到他穿着惯常的风帽衣和墨镜的信息应接不暇。