It is most dangerous in cases where blood clots travel through the body to the lung, blocking blood flow.
最危险的情况是血块在身体里运行到肺，堵塞血流。
By blocking the blocker-to football fans, adding an extra guard to your offensive line-the scientists got nitric oxide to open blood vessels again and increase blood flow, at least in lab animals.
通过阻塞这个障碍物，(对球迷来说，就是在你的进攻线上增加一个额外的防守)，科学家们用一氧化氮重新疏通了血管，并促进了血液流动。至少在实验室动物身上是如此。
By blocking the blocker—to football fans, adding an extra guard toyour offensive line—the scientists got nitric oxide to open blood vessels againand increase blood flow, at least in lab animals.
通过阻塞这个障碍物 (对球迷来说，就是在你的进攻线上增加一个额外的防守)，科学家们用一氧化氮重新疏通了血管，并促进了血液流动。 至少在实验室动物身上是如此。
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