雅思口语天天练：过去、现在和将来

　　The reason so many people find it so hard to be happy is that they always consider the past better than it was, the present worse than it is, and the future less realistic than it will be.

　　很多人之所以不快乐，因为总觉得过去太美好，现在太糟糕，将来又太飘渺。