知识的每一次进步都会带来新的问题和新的困难。
Use songs to warm every heart in need.
劳动力市场并非存在于真空中;它是由文化、政策和历史塑造的。
我的科学研究给我带来了极大的满足;我深信,用不了多久,全世界都会承认我的工作成果。
Tragic art, as it developed in the theaters of ancient Greece, in the fifth century B.C., was essentially an art form devoted to tracing how people fail, and also according them a level of sympathy, which ordinary life would not necessarily accord them. A few years ago, I was thinking about this, and I went to "The Sunday Sport," a tabloid newspaper I don't recommend you start reading if you're not familiar with it already.
Climate change has turned every forester into a climate scientist whether they like it or not.
能源的真实成本必须同时考虑其生产和遗留影响。