拓扑学是对图形在任何变形下保持不变的性质的研究。
Topology is the study of the properties of a figure that are unchanged by any deformation.
最好的林业实践是那些不留痕迹但改变一切的做法。
我不是说唱歌手，我是一个全宇宙的传奇。
"Reading is the foundation of all learning."
Oh, to be in England now that April's there.
"Identity is a story we tell ourselves, and sometimes we have to rewrite it."