他的研究是为了人类生活的改善。

His research is for the betterment of mankind.

《柯林斯英汉双解大词典》

为了人类的未来，我们必须借鉴过去的经验。

To ensure the future of mankind, it is crucial to draw on our experience from the past.

youdao

今天，许多人开始意识到，为了保护环境和为了人类的生存，我们需要更多的人成为素食者。

Today, many people have come to realize that to help the environment and for the human race to survive, more of us will need to become vegetarian.

youdao

And I think there was a time when that sense of dominion was used as justification for using those resources only to serve human needs.

我想，有一段时间里，这种统治感,被人们当做使用资源的借口,仅仅为了满足人类的需求。

普林斯顿公开课 - 人性课程节选

One of the reasons why human cells have compartments is because their functions are segregated into regions.

人类细胞有区隔结构的一个原因,是为了把不同生理功能隔开

耶鲁公开课 - 生物医学工程探索课程节选

That's the focus of our attention in Genesis, and it's only at the end of the story that the tree of life appears again in the passage that is emphasizing its permanent inaccessibility.

这点，是我们读《创世纪》时，应该特别注意的一点,直到故事的结束，生命树才又出现,是为了强调人类，永远无法接近它。

耶鲁公开课 - 旧约导论课程节选