特とっ講こう

noun

special lecture; lecture on a special topic

Refers to a lecture or course focused on a specific theme, often held as a one-off or limited series outside the regular curriculum.

• 来らい月げつ、環かん境きょう問もん題だいについての特とっ講こうが開ひらかれる。

  A special lecture on environmental issues will be held next month.