全球政治的未来将由民主和威权制度之间的竞争所塑造。

The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.

量子力学不仅仅是一个理论，它是一个从根本上改变了我们对现实理解的框架。

我们开采的每一吨煤炭都承载着对工人、社区和地球的责任。