It's time to challenge everything we know about paper.

现在是时候去挑战一切有关文件，我们知道。

youdao

If we have the courage to challenge everything, you are bound to succeed, like the grass, not afraid of any threat!

只要有勇气挑战一切，你一定会取得成功，就像小草一样，不怕任何威胁！罒。

youdao

She used to be annoyed with me because I would challenge everything she said and not believe anything unless someone could show me the facts.

她曾经对我很恼火，因为我会质疑所有的事情，除非有人能拿出事实，否则我不相信任何事。

youdao

The challenge, when everything has been tried before, is to persuade consumers that what you are doing is in some way innovative.

ECONOMIST: The last big thing

What we see coming down the pike is the opportunity for a long-term, industrial strength player to merge the world of consumer interface design with the challenge of rebuilding everything that touches the customer within the enterprise experience.

FORBES: The New Art And Science Of Great Customer Experience

Our challenge is to do everything we can to make it easier for folks to bring products to market and to start and expand new businesses, and to grow and hire new workers.

WHITEHOUSE: Competing in the Global Economy