teach-in

n (dated infml 旧, 口) lecture and discussion, or a series of these, on a subject of topical interest 研讨会.

tea-caddy (also caddy), tea-chest, tea-cloth, tea-cosy, tea-leaf, tea-party, tea-room (also `tea-shop), tea-service (also `tea-set), tea-strainer, tea-table, tea-things, tea-time, tea-towel, tea-tray, tea-trolley (also `tea-wagon), tea-urn, teacake, teach, teach a lesson, teach school, teachable, teacher, teaching, teacup, teak, teal, team, team spirit, team-work, teammate, teamster, teapot, tear, tear down, tear off, tear up, tear-drop, tear-gas, tear-jerker, tearaway,