漂白是一个化学处理过程,用来除去纤维 、 纱线或织物上不希望得到的颜色.
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Friction usually results in unwanted heat that flows into the atmosphere and is wasted.
摩擦导致产生不必要的热,这些热散失在大气中浪费掉了.
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Britain belongs to the EU countries, some products are to be the quota, some are unwanted.
英国属于欧盟国家, 有些产品是要配额的, 有些是不要的.
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Poisons that generally affect only unwanted plants, or weeds, are called herbicides.
那些只抑制多余植物或杂草生长的药被称为除草剂.
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