teach-in n. (大学师生对政府政策进行讨论和辩论的)宣讲会
teach-in[ noun ]
an extended session (as on a college campus) for lectures and discussion on an important and usually controversial issue
<noun.communication>
- Gaylord Nelson suggested offhandedly in a speech in Seattle that Americans hold a "teach-in" to promote concern for their air, land and water.