根据密西根大学的研究表明，阳光下仅需呆上30分钟就能改善你的情绪。

Just 30 minutes in the sun can boost your mood, according to a University of Michigan study.

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希拉里.克林顿希望在宾夕法尼亚州取胜，缩小与奥巴马在选举人票上的差距，同时还希望在佛罗里达和密西根这两个大州重新进行初选。

Senator Clinton is hoping to cut into Obama's lead in the delegate count with a victory in Pennsylvania, and is also hoping for re-votes in the large states of Florida and Michigan.

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