Carbon, oxygen, iron, and the like had to wait for stars-especially the massive ones-to form and create heavier elements via nuclear fusion.

碳，氧，铁等等元素(尤其是重元素)要等恒星形成后在其漫长的核聚变中产生。

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As a result, the researchers' model suggests, the waters down-current of a large methane plume, especially in an ocean basin with poor circulation, could lose as much as 95 percent of their oxygen.

研究人员的模型显示，这一结果导致大量不断释放的甲烷随流而下，使得尤其是在循环不畅的海洋盆地，水中氧气损失可能会高达95%。

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Before it's canned, food needs to be sterilized to remove all the potentially dangerous microorganisms - especially those that can live inside a can without oxygen.

在装罐之前，食品需要消毒，消除所有潜在的不安全微生物，特别是那些能够在无氧条件下生存的微生物。

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Doctors say it's notoriously difficult to predict the outcome of neurological injuries, especially those stemming from oxygen deprivation.

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Eliminating free radical production would involve completely redesigning aspects of our metabolism, especially the way we use oxygen to extract energy from food.

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Pro forma earnings are oxygen to unhealthy companies, especially tech ones.

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