In 1919, for example, a humpback whale with a pair of leglike appendages over a metre long, complete with a full set of limb bones, was caught off Vancouver Island in Canada.

例如，1919年，在加拿大温哥华岛附近捕获了一条座头鲸，它有一对长达1米多的腿状附肢，还有完整的整套肢骨。

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Afterwards he found a sunspot group which lived long enough to disappear from view on the western limb of the sun, to reappear on its eastern limb, and finally to regain its old position.

后来，他发现了一个太阳黑子群，它存在时间很长，从太阳的西边消失，又在东边出现，最后又回到原来的位置。

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And unfortunately, many people who have RLS also have trouble controlling sudden limb movements, which can occur every 20 to 30 seconds all night long — a major sleep disrupter.

并且不幸的是，许多RLS患者同时有控制腿部突然抽动的障碍，这种抽动在整个夜间每隔20至30秒就会发生一次。

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