我们海洋的健康直接影响我们社区和经济的健康。

The most important tool in chemistry is not the flask or the spectrometer—it's the imagination.

"The future belongs to those who believe in the beauty of their dreams."

我觉得布什总统根本没有为艾滋病做任何事。事实上，我都不能确定他会不会拼艾滋这个单词。