永远不要停止学习,因为世界永远不会停止变化。
The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.
廉价海鲜的真正代价由海洋承担。
一个谜团的核心不是犯罪,而是涉及的人。