The community is a fictitious body， composed of the individual persons who are considered as constituting as it were its members.

积极心理学不是一项观赏性运动。

艺术不是一件东西；它是一种方式。

农业的真正进步是用健康衡量的，而不仅仅是产量。

It is absurd to say that we have a duty to be benefited.

游戏行业是一个很棒的行业。它富有创造力，令人兴奋，而且总是在变化。

机器人是一种被编程执行多种任务的设备，并且可以重新编程以执行其他任务。