Has she no manners and knows no etiquette?

她不懂礼貌，也没有基本的礼仪知识吗？

youdao

He is beautiful and noble and knows no fear of anything.

他是美丽的、崇高的，什么也不害怕。

youdao

The pyramids of Egypt were built more than three thousand years ago, and no one knows how.

埃及金字塔是3000多年前建造的，而且没有人知道是怎么建造的。

youdao

No one knows why. Roanoke is a low, narrow island between the mainland and the islands of the Outer Banks.

VOA: special.2009.08.17

No time to waste. And we race off--perhaps risking an accident, who knows?

但是没有时间思考，圣诞老人要赶着发礼物？

耶鲁公开课 - 文学理论导论课程节选

And he says, I don't, "No one really knows where the Nile River starts."

他说，“我不，没人真的知道尼罗河的源头到底在哪里。”

神话有趣的课 - SpeakingMax英语口语达人

Of course, no one knows and no one cares, what people care about is the here and now.

ENGADGET: blogger-avatar

He knows his area of specialization, is articulate, and knows of no preordained consequences that will derive from his talk if it bombs or if it is a home run.

FORBES: Worried About Anxiety? Don't Be; It's Often Good For You.

There's been leaders in the past who if you took the same kind of opinion poll and had the same kind of a me ... er, media focus on them, and goodness knows, no one's taken as much scrutiny and sometimes unfair scrutiny as Gordon.

BBC: Rocky times