This is sort of venues for learning: recitation, reading, homework, so, that's my responsibility, the lecture. Recitation: that's got to be the staff.

这些是学习的内容：,背诵课，阅读，家庭作业，这是我的职责，上课，背诵课：,那则是由教学人员负责。

麻省理工公开课 - 固态化学导论课程节选