MS does not always result in severe disability.

MS不总是导致严重残疾。

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The lower part of his 2 spine didn't develop, a severe disability doctors didn't understand, let alone those around him.

他的下半段脊柱没有发育，连医生都无法理解如此严重的残疾是如何发生的，更不用说他身边的人了。

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Smaller blood vessels, although not the major blood vessels to the leg, usually carry enough blood to prevent severe disability.

小血管虽然并不能成为腿部的主动脉，但通常可以携带足够的氧气，防止发生严重残疾。

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MS does not always result in severe disability.

VOA: special.2009.01.06

On average, men at about 80 will face a year and a half of severe disability.

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Women can expect about three years of severe disability starting at about 82.

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Timing is the main factor determining whether a person lives or dies -- or lives with a severe disability -- after a stroke.

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