这是最近发布的一项研究得出的结论，该研究分析了来自9个国家11个品牌的259瓶水，发现平均每公升水中有325个塑料微粒。
That's the conclusion of a recently released study, which analysed 259 bottles from 11 brands sold in nine countries, revealing an average of 325 plastic particles per litre of water.
北京汽油的平均价格每公升从7.55元到7.65元不等。
Average petrol prices ranges from 7.55 to 7.65 yuan per liter in Beijing.
比如，带插头的汽车可能需要价值相当于每公升25美分汽油的电力供应。
Plug-in cars, for example, could be fuelled with electricity at a price equivalent to 25 cents a litre of petrol.
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