雅思口语素材：好句推荐-人之本性

　　When you cannot get something, it seems to be very important. And when you can get it easily, it seems to be trivial. This is human nature.

　　你得不到，它似乎就变得极重要。你轻易得到了，又仿佛忽地就无足轻重。此即人之本性。