There is no known cure.

VOA: special.2009.09.15

And humankind receives its first set of explicit laws, no more implicit, "Murder is bad." "Oh I wish I had known!"

人类要接受明确的律法，而非隐晦的，谋杀是不好的，哦！我要是早知道就好了“

耶鲁公开课 - 旧约导论课程节选

It turns out there's actually no natural function known in the body for lithium.

事实上我们已知的身体机能,在正常情况下根本不需要锂。

麻省理工公开课 - 化学原理课程节选

There's no known cure for hepatitis B, although the virus can be kept in check with anti-viral medicines.

VOA: standard.2010.07.26

He was want to say that if he had read as much as other men, " he should have known no more than other men."

他曾经说,如果他和别人读的书一样多，他就应该知道得和别人一样多“

耶鲁公开课 - 政治哲学导论课程节选

He says it would be unwise to proclaim that no terror attack could occur in his country, but he said there is no known threat at this time.

VOA: standard.2010.06.02

Pauli So, here, Pauli came out on top, we say, and he's known for the Pauli exclusion principle, which tells us that no two electrons in the same atom can have the same four quantum numbers.

在这里是，他因为Pauli不相容原理而出名，这个原理是说同一个原子中的两个电子,不能有相同的第四量子数。

麻省理工公开课 - 化学原理课程节选

Security officials in Massachusetts say there are no known threats to Boston and that Thursday's raids at a suburban home and a fuel station followed a period of close, confidential contact with New York's police department and federal agents.

VOA: standard.2010.05.14

The current version of the law, signed by George W.Bush eight years ago,is known as the No Child Left Behind Act.

VOA: special.2010.03.18

No cure is known. Doctors can only hope that victims are strong enough to survive.

VOA: special.2009.01.27

However,no radiation is involved with terahertz imaging, also known as full body scan technology.

VOA: special.2010.06.29

He seemed a part of the darkness and silence of the forest, for no one had ever known him to smile or speak an unnecessary word.

VOA: special.2011.02.26

He has no friends. He has never known a woman.

VOA: special.2010.01.10

Still,North Korea, also known as the DPRK, set no date for sitting down to talk about implementing its nuclear disarmament commitments.

VOA: standard.2009.12.11

He became known as no-drama Obama.

VOA: standard.2010.01.16

Speaking on the program Fern Britton Meets Tony Blair, that will be screened in its entirety on Sunday, the former prime minister was asked directly that if he had known back in 2003 that there were no WMDS, would he have gone on with the invasion of Iraq?

VOA: standard.2009.12.13