街道垃圾回收项目最初的构想是让人们将纸质品、玻璃制品与废弃铁罐分别放于不同的垃圾桶中。
Originally kerbside programmes asked people to put paper, glass and cans into separate bins.
据官方统计，每年旧金山市要对每个购物袋付费5.2美分的街道垃圾清理费，此外他们每年还要付1.4美分用于每个购物袋的再循环利用。
Officials calculate that the city spends 5.2 cents per bag annually for street litter pickup and 1.4 cents per bag for extra recycling costs.
例如，2002年，80万人清理了来自澳大利亚海滩、公园和街道的近1.5万吨垃圾。
In 2002, for example, 800,000 people cleaned up almost 15,000 tons of rubbish from Australia's beaches, parks and streets.
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