也是由于几乎每节课后，输出的心理愉悦感是负向的恒定，即沉重感、压力感、枯燥感、厌烦感。

Because after each lesson they always produce a sense of negative pleasure, that is, the sense of heaviness, pressure, dullness and resentment.

压力不够也会让人有厌烦感，有时候甚至觉得生命没有意义。

Not enough stress leads to feelings of boredom and sometimes, meaninglessness.

他厌烦托德了，厌烦他生闷气、卑劣，厌烦他的神气。

He was tired of Toad, and his sulks and his airs and his meanness.

厌烦？家务活才厌烦呢！但是你永远不另我凡心。

Bored? Housework is boring. But you were never boring "."

我厌烦别人哭。

I hate it when people cry.