Catching images of wild animals, especially rare ones, can be exceedingly difficult for photographers.
对于摄影师来说，要想拍到野生动物，特别是稀有的动物是很困难的一件事。
Libraries, especially ones with rare books, require air control to preserve the physical quality of their collections.
图书馆，特别是那些有善本的图书馆，需要调节空气，保护他们藏书的质量。
Libraries, especially ones with rare books, require air control to preserve the physical quality of their collections.
图书馆，特别是那些有善本的图书馆，需要调节空气，保护他们藏书的质量。
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