Everyone gets tired now and then but if you constantly feel worn out or your tiredness is severe, it could be a sign of a more serious health problem.

每个人都会时不时的感到劳累，但如果你一直感到筋疲力竭或累的很严重，它可能是更多严重的健康问题的标志。

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Dearly beloveds, my, it has been a while now since Candace and I did a work together. It is time to update a bit in a more serious manner.

我心爱的人们，距离上次我和坎迪斯合作以后，已经有一段时间了。是时候以一种更加严肃的态度进行一下更新。

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Now that we have had a shakeout, with possibly another one on the horizon, it is wise to properly evaluate the important merits of the more serious uranium development companies.

现在，我们已经淘汰，而且可能会有另一次出现在地平线上这是一个明智的正确评价有重大立功表现的较为严重的铀矿开发公司。

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What began as a story about what was really said became a story about who leaked a police log but it is now much more serious than that.

BBC: Why the Andrew Mitchell 'plebgate' story matters

Bad enough, for sure: yet the situation is potentially even more serious now than it was in the late 1980s.

ECONOMIST: The world��s new currency worries

It is this sort of thought, uttered sotto voce for now, which may eventually lead to a more serious assessment of Mr Blair around the world.

ECONOMIST: Britain��s most successful export | The