It is also important to know what to do if the signs appear -- in yourself or in someone else.

VOA: special.2010.07.27

Bio-markers help researchers know what is happening in the bodies of people with a disease or medical condition.

VOA: special.2011.08.02

He is a leader in the sign-making industry - a real big gun,if you know what I mean.

VOA: special.2010.11.28

He says international students should know that this can affect them in the future if they try to re-enter the United States.

VOA: special.2009.04.02

Chun-Quan Meng wants to know more about the Kennedy Center in Washington.

VOA: special.2010.10.29

"And in fact, the insurgents - you know, the poppy season is over - they have gone back to get their weapons.

VOA: standard.2010.05.26

As you know, some of the camps are in the low lying areas and the most flood-prone districts are Swabi, Mardan,Nowshera and Peshawar.

VOA: standard.2009.07.04

"They need to invest in activities where the youth can come and relate in a non-religious manner so that involves religion, they know where they need to come back to.

VOA: standard.2009.12.20

"The reason we are in Afghanistan militarily is that we know the consequences of allowing the bad lands of Afghanistan, of the Afghan-Pakistan border to become an incubator for international terrorism,"

VOA: standard.2009.10.21

While in Pakistan this week, U.S.Secretary of State Hillary Clinton said she finds it hard to believe that the Pakistani government does not know where al-Qaida leaders are hiding in the country.

VOA: standard.2009.10.30

"Even when we know the result of the election, we may not know what the result is in terms of government -- who will successfully make a deal with who to form what sort of government."

VOA: standard.2010.05.05

"Jacob definitely matures quite a bit because he has been dealing with his new self now, he has come to know his new self and the situation he has been put in - romantic-wise and a lot of stuff."

VOA: standard.2010.07.07

I don't know if that's true, but that's what we hear. And the Indians are very,very worked up about this and say,"Well,you know, the Chinese have had this capability to listen in on BlackBerry communications for years- there's a double standard."

VOA: standard.2010.08.11

He says finding that out will be crucial. "Whether this was an act of terrorism conducted by al-Qaida central or that of a lone wolf acting independently, we will have to wait and see for the investigation and what comes out of that, but we do know that al-Qaida and their affiliates have a crazed obsession in targeting the aviation industry,"

VOA: standard.2009.12.27