Today we are witnessing a sixth mass extinction, but unlike the others, the current loss of bio-diversity can be traced to human activity.

今天，我们正在见证第六次物种大灭绝，但与其它几次不同的是，目前生物多样性的丧失可以追溯到人类活动。

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Even so, "it's very important to devote resources and legislation toward species conservation if we don't want to be the species whose activity caused a mass extinction."

尽管如此，“如果我们不希望成为物种灭绝的罪魁祸首，还需要在财政和立法上对物种保护进行大力支持。”

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Women also had a greater mass of brown adipose tissue and higher 18F-FDG uptake activity.

女性比男性的棕色脂肪组织量高并且18F –FDG吸收活性也较高。

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Our officials in Libya talked with the government and -- delivering two primary messages, as the President said: First, that this individual should be treated as he always ought to be, a convicted mass murderer that took part in a terrorist activity in December of 1988, that killed several hundred people, including almost 200 Americans.

WHITEHOUSE: Press Briefing

The financial upsets of the past two decades, and especially the East Asian crisis of the late 1990s, have yielded a mass of new information and spurred a great deal of activity under each of these headings.

ECONOMIST: Hot and cold running money | The

For about a century now, tree planting has been the mass-participation activity.

BBC: NEWS | Science/Nature | Rolling back Iceland's big desert