out of all knowledge

Any individual whose brain has suffered such injuries can simply wander aimlessly away from the place where he lives, with all knowledge of his past blacked out.

一个人的大脑受到这些损伤以后就会离开他的住所漫无目的地四处游荡，对自己的过去完全丧失记忆。

The number of books in the tiny room was out of all knowledge.

这小房间的书得多让人无法想像.

and for two and a half thousand years, the ring passed out of all knowledge. until, when chance came, it ensnared a new bearer.

两千五百年来，魔戒的下落无人得知，命运巧妙的安排，让它诱惑了一个新的持有者。

History became legend, legend became myth and for two and a half thousand years, the Ring passed out of all knowledge.

历史变成了传说，传说变成神话。两千五百年来，至尊魔戒的下落无人得知。

She has altered out of all knowledge since her illness.

自从病后,我已变得让人认不出了.