• It helps us understand how each one developed his artistry and how each has shaped rock history.

    VOA: special.2009.08.07

  • He says research like the frog genome project helps humans understand the history of evolution.

    VOA: special.2010.06.29

  • Scientists say these provide information that has helped them understand the history of the environment.

    VOA: special.2010.04.07

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