据一些研究人员的答案是肯定的。
如果司机在收费开始百万傍晚他们的汽车，它需要更多的电厂建设，并可能被污染较严重，据一些研究人员。
If millions of drivers started charging their cars in the early evening, it would require construction of more power plants and potentially be more polluting, according to some researchers.
据一些南非研究人员最近报道，一些马拉松老手四肢肌肉中端粒长度短于同龄不好动者。
Some South African researchers recently reported that veteran marathoners had shorter telomere lengths in their quad muscles than sedentary men about the same age.
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