It banishes fear with the speed of a flame.

它象燃烧的烈火迅速驱散了恐惧。

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The first one stops and the second one takes off with the speed of the first.

第一个停止,第二个开始运动,获得第一个的速度。

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Electromagnetic waves travel with the speed of light, which is 300,000 kilometers per second.

电磁波，以光速传播，也就是30万公里，每秒。

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But blood drops with long tails can tell a great deal about the direction, speed and angle of the blood's starting point.

VOA: special.2010.05.05

And you can hear them together, Yeats moving from one to another with, oh, incredible speed and agility in that final strophe of the poem, on the next page.

而你可以听出所有，在诗的第三节中，叶芝转换得很快,很敏捷，翻到下一页。

耶鲁公开课 - 现代诗歌课程节选

And the experimenter is back there with the speed knob and at random intervals he just speeds up the tape of their heart and then slows it down.

实验者回到实验室，带着录音设备,随机地,他加速了心跳的录音,然后又慢下来。

耶鲁公开课 - 心理学导论课程节选

With the speed of change today, this concept remains relevant but has already become stale.

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They report speeds of 110 metres a second, comfortably competitive with the speed of a hard disk.

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