translation.en: And in each one of these research areas, of which there are even more, there are PhD students, like me, and we study incredibly narrow topics, things as narrow as a few processes or a few molecules.
translation.zh: 在每一个研究领域里，当然远不止这些 都有像我这样的博士生 我们都在研究非常狭窄的课题 窄到只是寥寥几个反应或者几个分子