We can do that -- for that is the story of human progress; that’s the hope of all the world; and at this moment of challenge, that must be our work here on Earth.

我们可以做到——因为这是人类进步的历程；这是全世界的希望；在当前面临挑战的时刻，这必须是我们在全球从事的工作。

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It is a common challenge for the international community to ensure advancement of the negotiation process and achieve substantive progress at an early date.

如何确保谈判进程继续向前推进，并尽早取得实质性进展，是国际社会面临的共同挑战。

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Managing software development is difficult for project managers with any amount of experience, and obtaining accurate measures of project progress is a constant challenge.

无论是对于经验丰富的还是经验不多的项目经理们来说管理软件开发都是非常难的，并且获得准确的项目进展的测量是一个永恒的挑战。

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And scientists have been working on this for years and there's been progress, but it's still a very difficult challenge.

科学家们对此已经研究很久了,并取得了进展,但仍有很大挑战

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Nyberg faces the same challenge -- and he has made some progress.

FORBES: Too little and probably too late

And despite Rangers' chances of progress being dismissed beforehand, Gomez was unsurprised with the stiff challenge presented by the Ibrox outfit.

BBC: SPORT | Football | Europe | Rangers impress Stuttgart's Gomez

Beyond growth itself is a further and even more important challenge: ensuring that every person has the opportunity to participate in economic progress.

FORBES: Commentary