Perrault was in a hurry, and he prided himself on his knowledge of ice, which knowledge was indispensable, for the fall ice was very thin, and where there was swift water, there was no ice at all.

Perrault很匆忙，同时为自己对冰雪的了解感到自豪，这些了解是不可或缺的，掉落的冰块都非常薄，而有水流的地方，根本就不存在冰面。

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And they're in no hurry to change at all.

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