They keep your eyes from drying out.

它们可以防止眼睛干燥。

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On every continent some rivers are drying out, threatening severe water shortages.1?

每一块大陆上都有河流枯涸，水资源紧缺日益加剧。

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You may notice that your wrinkles have become more apparent and your skin is drying out.

你可能注意到了你的皱纹已经变得更明显而且皮肤在变干。

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But today,the climate is drying out the fertile grasslands.

VOA: special.2009.04.22

And then they found that they could freeze-dry this preparation of virus, and freeze-drying to lower the temperature, freeze it, then extract out all the water, so you're left with a powder, basically a powdered form of the virus, that could be shipped all over the world, and then reconstituted by adding water to it.

研究者们发现可以冷冻干燥这些病毒制剂,冷冻干燥就是就是降低温度,冷冻病毒,然后提取出所有水份,然后就剩下一些粉末,这主要是粉末状的病毒,这样就能将它运往全世界,并可以通过加水来恢复病毒的活性

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This is the part that matters, when the onions soften and sweeten without drying out.

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It has taken another week for Amtrak to finish drying out the other three tunnels.

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To keep their voices from drying out in the desert, the couple equipped the house with a humidification system.

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