There they cool and harden into volcanic ash.

然后在空中它们又冷却变成火山灰。

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Melted metal is poured into a mold to harden into shape.

熔化之金属倒入模子中以冷却成形。

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They can harden into a thick cyst, and can leave behind deep, hard-to-remove scars.

他们可以把一个厚厚的囊肿硬化，并能留下深刻的，难以去除的疤痕。

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They become sticky and harden into the shape of the letter C, like a sickle, a hand tool with a curved blade.

VOA: special.2009.12.16

But it is quite likely that the compromises reached under Mr Bremer's supervision may harden into permanence.

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Will she harden into a tough shell of a businesswoman who sees the world as a cold place?

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An excess of confidence in your own own point of view or capabilities can harden into dogmatism, inflexibility, not listening.

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