亚当斯说：“熊果酸是一种有趣的天然化合物。”
"Ursolic acid is an interesting natural compound," Adams said.
“如果没有任何结果，你得对自己说点什么，”亚当斯说。
"If you get no results, that should tell you something," says Adams.
控制发动机的震动和其他噪声是个具有重要意义的挑战，亚当斯说。
Reining in the motor pulsations and other noise is a significant challenge, Adams said.
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