But here is something that scientists now know: A team led by Professor Fu has reported the first genetic link to how much sleep we need.

VOA: special.2009.08.26

"We need an army of people who are equipped to know how to work at all levels and all scales, from protecting animals in the wild to providing shelter to them in zoological parks if necessary."

VOA: special.2010.06.22

When I used to know you so well Yeah, yeah, yeah How did we get here?

VOA: standard.other

We've worked on 10 or 12 floats, so we know basically how to go about this,".

VOA: standard.2009.12.30

We did not know how quickly it was going to move. flu, you cannot catch up.

VOA: standard.2009.05.03

"Before we not that smart. Now we know what going on, how much they cheat us, how much they want us to be slave for them."

VOA: standard.2010.05.14

When I used to know you so well YeahBut how did we get here?

VOA: standard.other

When I used to know you so well But how did we get here?

VOA: standard.other

"And,it is very important that the United States deal with the military, know who they are, know the individuals, and then be able to appraise how we might affect change."

VOA: standard.2009.11.02

"that are against this move-are asking is this, 'How do we know that the Americans and the West are basically going to let the Russians live up to their promise of giving the uranium back?

VOA: standard.2009.10.28

"More and more, there are actually people aware of the fact if we want to know more about medicine or actually how to treat patients with all these health care issues, we have to look to the past as well."

VOA: standard.2010.05.05

This brought in their writing skills. After we talk about all of them, we will write the numbers down - now this is three and two more - before we even tell them the plus sign, you know,how to join things together."

VOA: standard.2010.08.10

Today,that is not enough any more." "When you want to buy the latest it bag, you also want to know how it is produced And that is the biggest change that we have seen in our business since the hem-lengths went below the knee."

VOA: standard.2010.01.31

How do we know that they are not going to keep it all?" The United States and allies France and Russia have supported the IAEA draft deal with Iran as a means to alleviate concerns that Tehran is using its nuclear program to develop atomic weapons covertly.

VOA: standard.2009.10.28