Her disappearance has never been satisfactorily explained.(她的失蹤一直沒有得到令人信服的解釋。)

Police are investigating the disappearance of key files on the killers.(警方正在調查殺人兇手關鍵檔案丟失一事。)

No one noticed his disappearance.(沒人注意到他失蹤了。)

A young mother has flown to Iceland to unravel the mystery of her husband's disappearance.(一個年輕母親已飛到冰島，去揭開她丈夫失蹤之謎。)

Since the disappearance of sea urchins from the waters up the coast of South Florida, many coral reefs there have been smothered by the uncontrolled growth of algae.(自從海膽從南佛羅里達海岸的海水中消失后，那里有許多珊瑚礁被不受控制生長的藻類所扼殺。)

Therefore, it is probably the increased flow caused by suburban development that is responsible for the dusky salamander's virtual disappearance from New York State.(因此，可能是郊區發展引起的流量增加導致了紐約州灰黃蠑螈的消失。)

The disappearance of dinosaurs is not necessarily caused by astronomical incidents.(恐龍的消失并不一定是由天文事件引起的。)

And perhaps a disappearance.(很可能是一樁失蹤案。)

He explains that the disappearance of one animal can have serious consequence to remaining species in that habitat.(他解釋說，一種動物的消失可能會對該棲息地的其他物種造成嚴重的后果。)

Her disappearance has baffled police.(她的失蹤令警方大為困惑。)