The circular arc gear drive is one kind of axial conjugate gear drive which meshes in points. The movement transmission depends contact mark along the end motion to realize.

圆弧齿轮传动是一种轴向共轭、点啮合制的齿轮传动，运动的传递依靠接触迹沿轴向移动实现。

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The shift from silent to sound film at the end of the 1920s marks, so far, the most important transformation in motion picture history.

20世纪20年代末无声电影向有声电影的转变标志着迄今为止电影史上最重要的转变。

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If there was motion in the current frame, add a rainbow piece between the end of previous rainbow piece and the current motion position.

如果当前帧中有运动，就在前一段彩虹的末尾与当前运动位置之间加一段彩虹。

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Why should we have happiness as our highest end, as our chief concern, as that which determines the motion of our life?

为什么把快乐作为最终目标，作为主要担心，为什么由它来决定生命活动？

哈佛公开课 - 幸福课课程节选

I get to the end of the loop, and I actually do a little bit of wasted motion there. And the little bit of wasted motion is, I take the value at i, store it away temporarily, take the value where min index is pointing to, put it back in there, and then swap it around.

我走到了循环的末尾，事实上我做了多余的动作了,有点多余的是我把i的值，临时保存起来了，看看MinIndex指向的值，放回到哪里，然后再交换。

麻省理工公开课 - 计算机科学及编程导论课程节选

It was clear from the debate that the House did not accept this would put them on a slippery slope in human rights terms, and, in the end, the motion was not pushed to a vote.

BBC: How the Houses stand

Motorola continues to struggle amid tough competition from rival Nokia on the low end and BlackBerry-maker Research in Motion on the high end as activist investor CarlIcahnCarl Icahn pushes for a seat on the company's board of directors.

FORBES: Magazine Article

In November, Assembly members failed to agree on an Ulster Unionist motion to end double-jobbing by 2011.

BBC: Double payments to end for NI MPs who are MLAs