将焦点放到中间行。

Place focus in the middle row.

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尼古拉斯.布斯曼说，最好从人群中间开始进行交谈而不是在边缘位置，他是《怎样在90秒内成为众人焦点》一书的作者。

Nicholas Boothman, the author of How to Make People Like You in 90 Seconds or Less, says it's better to start in the middle of a room rather than skimming the periphery.

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星火的回答是：射出去6英里远的激光到大气中间层，测量失真，然后调整激光的反射镜直到光束背对焦点。

Starfire’s answer: Shoot a laser 56 miles into themesosphere and measure the distortion. Then adjust the laser’smirrors until the beam is back in focus.

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