单词	fastness
释义	fastness /ˈfɑːs(t)nəs / noun 1A secure place well protected by natural features: a remote Himalayan mountain fastness... Rommel's army had to be worn down, and if it had been allowed to withdraw intact into the mountain fastnesses of Tunisia, securing a decisive land victory in North Africa would have been rendered immensely difficult. As, indeed, did the original inhabitants of the Cinque Terre: even after they moved downhill from their mountain fastnesses, most locals continued to work the land. She describes the remote mountain fastnesses between Afghanistan and Pakistan and tells the tragic tale of a runaway young bride bought as a wife for a tribal man. 2 [mass noun] The ability of a material or dye to maintain its colour without fading or washing away: the dyes differ in their fastness to light... Moreover, the sizing does not impact the hand of the fabric or the wash fastness of garments, the company reported. Many of the colors were not fast, although there is not agreement in the literature on fastness properties of the various dyes. Origin Old English fæstnes (see fast1, -ness).
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