In the US alone, 127 billion plastic bottles are purchased every year, according to one estimate.
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历史上,在北齐奠基人高欢的带领下,他的家族和部众从敕勒川辗转回到中原腹地。湾漳壁画墓中出土了6件大型鞍马、14件小马和4件驮马,其中驮马主要作为畜力使用,小马应是未成年马驹或备用之马的体现。
It was one of several used to promote the latest game in the Call of Duty series.