可持续性不是一种趋势；它是食品生产的未来。

The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay between topology and symmetry leads to novel quantum states of matter.

The Langlands program is a vision of how mathematics could be understood as a whole.

【译文】 子夏说：“重贤轻色、尽心孝顺父母、尽力献身国家、交朋友言而有信的人，即使没有高等学历，我也认为他已经受到了良好的教育。”