We keep on talking until the light is off.

我们一直聊到灯熄灭了。

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The Light Touch casts a big image from up close by bouncing lasers off a 0.4-inch microdisplay, using techniques from holography to keep the picture in focus despite the sharp projection angle.

这种轻触型工具播放的近距离图像是在0.4英寸的微小型显示器上反射的激光形成的，使用全息摄影术以保持图画尽管在投影尖角上依然聚焦。

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Fashioning a headdress with a light colored material will keep the sun off the skin.

头上带一个用浅色材料做的头饰可以使太阳不直接照射到头皮上。

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But keep the discussion light and off work unless the conversation naturally moves in that direction.

WSJ: 'Don't Cleat the Boss' and Other Tips to Manage the Summer Office Picnic