The fluoride mixes with enamel, the hard surface on teeth, to help prevent holes, or cavities,from forming.

VOA: special.2009.03.11

He and former American President Jimmy Carter worked with the Sasakawa Africa Association to help increase the quality and production of corn on the continent.

VOA: special.2009.11.10

Museums and galleries from around the United States have placed their videos on this Web site to help connect viewers with the world of art.

VOA: special.2009.08.28

He fights against bad people or super villains with the help of other down-on-their-luck superheroes.

VOA: special.2010.11.22

"I told my parents that I didn't want them to help me with money this summer so the two main jobs, the one on campus and at the environmental consulting firm, are mainly to make money for rent and utilities and all that."

VOA: special.2010.06.18

She said with help from the Brazilian-led U.N.stabilization force, Haiti is also making strides on domestic security, and tackling corruption and the drug trade.

VOA: standard.2009.04.14

So it provides export companies with financial help to lower their prices on everything from grains and soybeans to dairy products and,in this case,cotton.

VOA: standard.2010.04.28

She says the Aceh tsunami survivors can relate to the Padang earthquake victims on a personal level and help them deal with their loss and grief.

VOA: standard.2009.10.12

But on this day at the fort, painstakingly reconstructed stone by stone by Spanish archaeologists with the help of the local population, few visitors are to be found.

VOA: standard.2009.06.04

'We're going to have to look at the car." "I have Toyota on standby to help us with our investigation, and we definitely want to get to the bottom of it."

VOA: standard.2010.03.04

because in disasters such as this, the first hours and days are absolutely critical in saving lives and avoiding greater tragedy, I have directed my team to be as forward leaning as possible in getting the help on the ground and coordinating with our international partners as well,"

VOA: standard.2010.01.13

Saying President Obama has offered Iran every opportunity for constructive diplomatic dialogue on its nuclear program, Senate Democratic Foreign Relations Committee chairman John Kerry said more robust sanctions are in his words the only way to dramatically increase the economic and diplomatic pressure on Iran from the outside and help leverage pressure on the regime from its own population which wants a different relationship with the world.

VOA: standard.2009.09.25