不过布拉德克说，紫杉醇看来能改善功能，但不能完全治愈严重的脊椎损伤。

But Bradke says while Taxol appears to improve function, it cannot completely heal a serious spinal cord injury.

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这个问题已经变得如此严重以至于一些牡蛎苗床已完全消失。

The problem has become so serious that someoyster beds have vanished entirely.

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更严重的情况下，当喉咙完全闭合时，甚至会发生呼吸暂停，持续10秒甚至更长时间。

Sleep apnoea is a more serious condition where the throat closes off completely, leading to intermittent pauses in breathing which last for ten seconds or more.

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Now it's not until the fourth stanza of the prelude that we can fully understand the magnitude of the strange anxieties here.

直到序曲的第四段,我们才能完全明白这种奇怪焦虑的严重性。

耶鲁公开课 - 弥尔顿课程节选

And it turned out that another, not quite as deadly, but still very serious disease called syphilis was also common in this part of the world at that time.

现在已知另外一种疾病,它并不完全致命但也很严重,它叫梅毒,在那时的一些地方也很常见

耶鲁公开课 - 生物医学工程探索课程节选