The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

不能与心意相通的人在一起，徒然编织着同心草。

当制造业遇到数字化转型时，我们不只是自动化流程——我们提升了目标。

Now, my mama always told me that miracles happen every day. Some people don't think so, but they do.

二分说

一个问题如果在计算机上可以快速解决，那么它属于P类问题；如果一个解可以快速验证，那么它属于NP类问题。