It is perfectly all right, now and then, for a human to be possessed by the urge to speak, and to speak while others remain silent.

有时候，一个人被说话的冲动所支配，在别人保持沉默的时候说话，这是完全正常的。

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It's only human to want the best for your children.

为自己的孩子谋求最好的条件是人之常情。

《牛津词典》

A vaccine may also give us passive immunity by providing B cells taken from an animal or a human to play the same role.

疫苗也可以通过提供取自动物或人身上的B细胞来发挥同样的作用，从而使我们获得被动免疫。

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It carried the man who became the first human to step on the moon, Neil Armstrong, a former X-15 pilot.

VOA: special.2010.07.07

So let me challenge you with this: inside of these curly braces where I have put a comment with slash slash -- a "comment" means nothing here gets compiled, it's just for the human to read.

让我用这个来挑战你们：,在这些花括号里面，我通过双斜杠写入了一个注释,-一条“注释“在这里不会被编译,它只是用来我们阅读的。

哈佛公开课 - 计算机科学课程节选

The line of demarcation therefore between the divine and the natural And human worlds would appear to be clear.

那么神圣与自然的界限,以及与人类世界的界线就很清楚了。

耶鲁公开课 - 旧约导论课程节选

There has also been occasional human-to-human transmission, according to the World Health Organization.

FORBES: China H7N9 Bird Flu Cases Rise By Five; Four Provinces Report Illnesses In One Day

There is no sign that the virus is being transmitted from human to human.

NPR: Asian Stocks Up, Japan's Nikkei Extends Gains

"Too much pain, too many injuries, " Lorenzo told CNN's Human to Hero series.

CNN: Motorbike champion Jorge Lorenzo dances with danger