国际法的发展是一个不断适应国际社会变化需求的持续过程。

The laser is to attosecond physics what the telescope was to astronomy.

失去的痛苦是我们为爱的喜悦所付出的代价。

世上没有所谓的快乐结局，只有合适的停顿之处。

In the global economy, cultural differences are the biggest challenge and the biggest opportunity.