Some teachers' teaching pleases some people but other people feel the same teaching isn't pleasing. It isn't easy to please each person but teasing the teacher won't please the teacher and each teacher needs to be free to teach as he pleases.
一些老师的授课令一部分人愉悦,但另一部分人则感到乏味,想令每个人愉悦谈何容易,但是戏弄老师会使老师反感,每位老师都需要按他喜欢的方式去随意地授课。