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

VOA: special.2009.03.11

Hezbollah-led opposition to his cabinet choices kept him from forming a government and led to his resignation on September 7.

VOA: standard.2009.09.24

In forming his cabinet, Buchanan did not ask for advice from Senator Stephen Douglas of Illinois.

VOA: special.2009.05.14