This uncertainty of the future is one of the main marks of the human condition. It taints all manifestations of life and action.

这种关于未来的不确定，是人事的主要特征之一。生活与行为的各方面都不免被它困扰著。

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The producing of high frequency form sign, fixed form and position of form sign, the abstraction of the meaning of form sign are the main marks of form sign system.

认为高频形符的产生、形符的定形定位、形符表义的抽象化是形符系统形成的主要标志。

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The move is a blow to the group as it marks the third time it has tried to build a beachhead in Europe's main share markets in more than 15 years.

此举对于该集团是一个打击，因为这是其15多年来第三次试图在欧洲的主要股票市场立足。

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This marks the main difference between the council and its predecessor.

ECONOMIST: The UN and human rights

The statement said the death of "one of the main leaders of AQIM marks an important stage in the fight against terrorism in the Sahel (region)".

BBC: File picture of Abdelmalik Abou Zeid

Although the images did not directly show water, they showed bright deposits running several hundred meters, seemingly left by material carried downhill inside the crater by running water, occasionally snaking around obstacles and leaving finger-shaped marks diverting from the main flow.

CNN: Life on Mars?