科学与社会的对话必须持续进行。

在计算机科学中，最简单的解决方案往往是最优雅和有效的。

If you lose or forget to bring a cable，adapter or charger，check with your hotel. Most hotels now have a drawer full of cables，adapters and chargers others have left behind，and probably have the one you are missing. You can often claim it after borrowing it.