Physicists are pretty confident dark matter exists. Astronomical observations first made in the 1930s show there is not nearly enough ordinary matter to hold galaxies together as they spin round.

其实，物理学家对暗物质的存在确信无疑，最早上世纪30年代做的天文观察就显示出要保持时刻运转的星系稳定聚集在一起远非一般性物质所能；换句话说，一个星系的可见部分一定是牢牢嵌在一种不可见的光晕上的；否则，它就会在运转过程中四分五散。

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In the evening cool at a fairground on the Tripoli waterfront, giggling children chant as they spin on a merry-go-round.

的黎波里夜凉如水，在滨水区的露天广场上，孩子们坐在旋转木马上嬉笑着唱歌。

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Ball physics have been redone from scratch this go round so the ball will spin, bounce and generally move how it should.

球的物理因素被重新制作，这样球将旋转，反弹和整体地按照应该的方向运行。

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They cite the Gershon review as evidence of their efficiency but the truth is that its first round delivered more spin than savings.

BBC: In full: Cameron's economy speech

In turn this will enable the banks to bail out the very same system that has bailed them out and the merry go round will continue to spin, however giddily.

FORBES: Three Questions Facing Capitalism

News of the sale talks puts a new spin on the round of layoffs that Time Inc.

FORBES: Time Warner Shopping Time Inc. Likely Price Tag? Try $2.5 Billion