弦理論的美妙之處在于它提供了一個框架，使引力和量子力學可以和平共處。
啟發(fā)式研究揭示了我們?nèi)绾魏喕瘡碗s問題，有時會導致錯誤。
The reason I run is to define life.
Dairy is more than a product; it's a bridge between cultures and communities.