The photograph is the most perfect picture.
今天我们种下的每一棵树都是留给后代的遗产。
拓扑绝缘体的发现开启了凝聚态物理学的新前沿,其中拓扑和对称性之间的相互作用导致了新的量子物质状态。
It is absurd to say that we have a duty to be benefited.
Never compromise on safety—it’s the cornerstone of everything we do.