无影无踪

A computer simulation shows the evolution of a molecular cloud with a solar mass of 10^4 falling toward a supermassive black hole with a solar mass of 10^6. Here, the cloud is within 0.5 parsecs of the black hole. Color scale is from 0.1 g cm^-2 to 1000 g cm^-2. A small population of stars is being ejected from the system in the this image.

据美国生活科学网站21日报道，银河系中央潜伏着一个巨大的黑洞，身处黑洞附近的天体都会逐渐地被黑洞吞噬，并最终消失地无影无踪，也就是说在理论上黑洞附近是不可能存在任何天体的。

The assault on the watergate is repelled when the traitors open the floodgates and flush the Tanith out; however, Sergeant Cluggan leads a successful attack on the sanitation outfalls, creating a breach for the armoured assault.

水闸的突袭部队被那里的叛军打开闸门冲了个无影无踪。但是克鲁根中士带领的污水管突袭行动得到了成功，使得一支装甲部队从那里突破了进去。

Why such a strong, well-adapted species disappeared.

为什么一个这样强大的，适应环境能力很强的人种会消失的无影无踪？

When facing pressure, some people sigh in distress at their wit's end, their once lofty aspirations and tenacious willingness to struggle vanishing without a trace like mist and smoke.

面对压力，有的人唉声叹气、束手无策，曾经有过的雄心壮志、顽强拼搏慢慢变得烟消云散、无影无踪；有的人抱怨时运不济、生不逢时，曾经展现的意气风发、运筹帷幄渐渐让位给得过且过、随遇而安；还有的人悲天悯人、破罐破摔，最后落魄得放浪形骸、借酒浇愁

We have glimpses that seem brilliant but quickly fade; we catch sight of images that tease us with connections and patterns that too-soon flow on; we hold in momentary view a comprehensive arrangement that dissolves rapidly and disappears.

我们常有灿烂的灵感，但它们总是转瞬即逝；我们常看到令人浮想联翩的影像，而它总是很快就消逝了；我们也曾短暂地拥有深邃的思想，但它又每每消失得无影无踪。

In 1963 several British coal miners found a stairs to the underground shaft when they excavated a tunnel in England. They heard clear sounds of movements of mechanical units from underground. But, soon the stairs and the entrance to the underground shaft disappeared without a trace.

1963年，英国的几名煤矿工人在挖掘一条隧道时发现一个通向地下井的楼梯，在楼梯口听到了地底下有清晰的机械运动声音，但楼梯和通向地下井的入口不一会儿就都消失得无影无踪了。

He's just disappeared off the face of the earth .

他从地球上消失得无影无踪。

However because the victim never bothered to inquire about the credit account, the theft was never exposed until it was too late to trace.

但因为受害人没有困扰，以询问有关信用帐户，盗窃罪是从来没有暴露，直到为时已晚得无影无踪。

The mysterious instigators of the mob destroyed or burned or looted houses, quickly disappeared without a trace.

这些神秘的煽动者在暴民毁坏或放火烧毁屋宇或进行掠夺之后，就迅速消失得无影无踪。

We lowered a tiny video camera over the side, hoping to watch the underwater action live on a screen in the ship's wheelhouse, but our lingcod stayed out of sight.

我们把船侧的微型摄像头放低，想在驾驶室通过屏幕看看水下鲜活的生命，可是我们的鱼儿早已跑得无影无踪。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。