His research is for the betterment of mankind.

他的研究是为了人类生活的改善。

《柯林斯英汉双解大词典》

He is a practical humanist, who believes in the dignity of mankind.

他是个真正的人道主义者，信奉人类的尊严。

《柯林斯英汉双解大词典》

Truly, this is the way of mankind.

的确，这是人类的方式。

youdao

In the words of poet Walt Whitman: "It is for the interest of mankind that America's power and territory should be extended -- the farther,the better."

VOA: special.2009.02.19

While the companies make up a varied landscape of technological know-how, financial wherewithal and enterprising ideas, they all share one common goal: The desire to conquer what is widely considered to be the final frontier of mankind -- the universe.

CNN: Opening the space frontier, one tourist at a time

Drew Goddard, who wrote Cloverfield and penned "Cabin in the Woods" with Joss Whedon, had drafted a script for the story, in which a high-functioning artificial intelligence turns against mankind and wages all-out war to wipe us off the planet.

CNN: STORY HIGHLIGHTS

The Moon Agreement builds upon the Outer Space Treaty but also says that any natural resources found on the moon are part of "the common heritage of mankind" - in other words, they must be shared.

CNN: Who owns the moon? It's 'complicated,' say experts