1·That's what will concern us in this second, still introductory lecture to this course.
这就是我们要关注的第二点，也是这门课程的导论。
2·This course features a full reading list and introductory lecture notes for the class.
本课程有完整的阅读资料和导读性质的课堂讲稿。
3·Because this lecture is introductory, I'm not going to spend a great deal of time explicating the more difficult moments in his argument.
因为这门课是导读课程，我不会花太多时间，详细解释他的理论中的难点。