Today, facing "Beyond, I could not help saying with smile "How time goes by. At this moment when I use this expression_r_r_r_r, in addition to regret, I am thinking of my luck and my gratitude.

如今，面对《拉拉秧》，我再次面带微笑地说出那句“光阴荏苒”，我想，此时的这个词，除了惆怅，还有庆幸，再有感激。

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So in addition to expressing my gratitude to Grand Challenge students past, present, and future I want to thank the universities, companies, philanthropists, and funding agencies that are supporting the Grand Challenge Scholars Program, and urge others to join this worthy effort.

WHITEHOUSE: America��s Students Step Up to the Challenge