grass wool filter 草纤维过滤器
The yard was otherwise empty of anything but sheep, dirty bundles of wool searching the dark ground for patches of new grass.
空空的院子里，除了他，就只剩下绵羊，打卷儿的毛上都是土，正在黑暗的院子里找新长出来的小小草丛。
White silk, wool fabric on the grass stains can be removed using hydrogen peroxide,.
白色丝绸、羊毛织物上的青草渍，用双氧水即可去除。
Everything made of wood, hide, wool, linen, grass, hair, and similar materials will decay and vanish in dust in a few years or centuries, save under very exceptional conditions.
任何由木头、生皮、绒线、亚麻、草、毛发以及相似物质做成的东西除非在一些非常特殊的条件下，几年或几个世纪以后，会在尘土中腐烂并消失。
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