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煤炭仍将是能源结构的一部分,但其角色必须为更清洁的未来重新定义。
And let's be clear: It's not enough just to limit ads for foods that aren't healthy. It's also going to be critical to increase marketing for foods that are healthy.
科学家与公众之间的对话对于负责任的创新至关重要。
爱一个人就是看清他们的真实面目,却依然关心他们。
解释:国家垂危败亡,一定是因为任用了奸邪小人。
Writing is the only way I have to explain my own life to myself.
Lisp语言被设计成可扩展的,很容易为其添加新功能。