The secretary said any progress toward improving U.S.-Iran relations will not only be open, but will likely develop slowly.

VOA: standard.2009.05.05

The International Rice Research Institute is working to develop kinds of white rice whose starch is released more slowly.

VOA: special.2010.06.30

Yet their genetics have caused pandas to develop more slowly than human beings and other mammals.

VOA: special.2010.01.19