51.edifying 有教育意义的

52.couch potato 电视迷

53.be harmful to … 对…有害

54.imitate 模仿

55.inexpressible 难以形容的

56.physical and mental health 身心健康

57.stimulate one’s imagination and creativity 激发某人想象力和创造力

58.unwholesome lifestyle不健康的生活方式

59.a great deal of information 大量的信息

60.disinteresting 令人索然无味的

1. edifying 有教育意义的

2. physical and mental health 身心健康

3. unwholesome lifestyle不健康的生活方式

And it is a most edifying form of instant gratification.

而且它是一个最有教育意义的形式能带来立即的喜悦和满足。

Generally speaking, blogs increase the channels of person-to-person exchange, which is beneficial to people's physical and mental health.

一般来说，写博客增加了人际交往的途径，是有益于身心健康的。

Smoking is an unwholesome lifestyle.

吸烟是一种不健康的生活方式。