European countries are now making an active effort to reuse materials more than they used to.This is called recycling.Materials such as paper, glass or metal are collected, sorted, treated and used again.Old papers are recycled. The ink is taken out by a special technique, and new paper is made.Oil from fatories and motor oil can be treated and resued.In many cities in Europe rubbish is collected separately.Empty glass bottles are collected, and the glass is broken and reused for making new bottles.

　　欧洲国家现在正在积极努力比过去更多地重复使用旧材料。这叫做废物的回收再用。像纸张、玻璃或金属这类材料，收集起来加以分类，经过处理后重新使用。旧报纸可以回收再用，用特殊的技术清除油墨，再造新的纸张。工厂的废油和发动机的机油，都可以经过处理重新利用。在欧洲的许多城市里，垃圾是分类收集的。把空的玻璃瓶收集起来，打碎后再用来制造新瓶子。