"First off,there is the infectious disease risk because if you use human blood there's a lot of transmissible diseases.

VOA: special.2009.08.03

The most important weapon against carbon monoxide poisoning is the safe use of materials to heat any enclosed area.

VOA: special.2010.02.02

The use of scientific knowledge in legal cases is called forensics, from the Latin term for a public forum.

VOA: special.2009.10.03

Speaking of personal questions, there is an expression people sometimes use when their children ask, "where do babies come from?"

VOA: special.2009.06.28

Western nations are concerned that Iran could use the missile technology to launch a nuclear weapon, which Iran is suspected of building.

VOA: special.2009.02.07

Comparison of underwater odors is the idea behind some mechanical searching devices now in use by the military.

VOA: special.2010.08.03

It is surprising how many expressions that Americans use every day came from the card game of poker.

VOA: special.2009.11.22

That is what you use to hit nails into the pieces of wood to hold them together.

VOA: special.2009.09.20

Now to the wordplay. Commentators and bloggers often use the word "gate" when a politician is accused of trying to hide the truth.

VOA: special.2011.07.16

Professor Hess says a major value of sustainable agriculture is making good use of what you have.

VOA: special.2009.04.14

The observance is meant to bring attention to the growing use of tobacco and its deadly effects.

VOA: special.2010.05.31

This is largely the result of more births in older women and more use of fertility treatments.

VOA: special.2009.10.26

Also,there is a widespread lack of knowledge among local health workers about how to use antivenoms.

VOA: special.2010.01.25

He said,"What is the use of being elected or re-elected, if you don't stand for something."

VOA: special.2010.05.20