Energy security is a crucial part of national strategic security, and we must firmly keep it in our own hands.
Mental processes evolved to solve practical problems.
财富和权力是多余的,对于那些能享受简单快乐的人来说。
Collaboration between scientists is key to solving complex problems.
热爱传统从来没有削弱过一个国家.传统就是生死时刻用来救命的.