The concept of justice is not a legal concept, but a moral one.
Collaboration across industries is key to solving the world's energy challenges.
The discovery of DNA structure was like unraveling a very complex puzzle.
复杂很容易,简单却很难。
伟大的历史是用墨水和鲜血写成的。
爱不过是使用积极强化的另一个名字?或者反过来。