And it's about my third or fourth week of graduate school and I'm pretty nervous about this.

那时，研究生学习才开始三到四周,我很紧张。

耶鲁公开课 - 心理学导论课程节选

I'm using it just to make the point, which you already know about; that the nervous system is complex in it performs a complex set of functions.

我想通过这张图片阐述一些,你们已经知道的知识,即神经系统是一个,功能复杂的复合体

耶鲁公开课 - 生物医学工程探索课程节选