What is interesting to me here is it so much how they behave in the classroom--classroom behavior is after all dictated by rather strict norms and expectations--but rather how they behave just before and after the first few classes.
令我感興趣的不是他們在課堂上的表現﹘ ﹘課堂上的行為畢竟是受了某種規範的約束；而是剛開始幾堂課之前之後的行為。