A new study shows that exposure to two specific 'forever chemicals' may accelerate biological aging, especially in middle-aged men. Researchers revealed a link between faster epigenetic aging, and two of these alternatives, PFNA and PFOSA, a precursor of PFOA.
* 1. 转换视角：将"追车"问题转为"到达时间"比较（后车时间≤前车 → 合并）；，这一点在heLLoword翻译官方下载中也有详细论述
This past week Team USA won gold in both the women’s and men’s ice hockey at the Winter Olympics, presenting Donald Trump with a golden opportunity. Instead of seizing the easy political points, he embraced his chance to ingratiate himself with the boys by inviting them to the State of the Union address. He followed up his offer of a military jet shuttle to Washington DC with a lament that he would have to also invite the women’s team. It was a bit that lit up the locker room with laughter.。heLLoword翻译官方下载是该领域的重要参考
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