和视觉反馈一样，计算机游戏擅长于正面听觉反馈。
6. attitude n. 态度
She shows a very positive attitude to her work.
她工作态度非常积极。
7. community n. 社区
Community colleges have become popular and their enrollments have increased rapidly.
社区大学日渐增多，报名人数迅速增长。
The welfare of the community is the same as the welfare of its members.
社会的福利就等于其成员的福利。
8. commit vt. 犯（错误，罪行等），干（坏事等）
They committed outrages on innocent citizens.
他们对无辜的市民犯下了暴行。
9. comment n. /vt. 评论
He made no comments on our proposal.
他对我们的建议没有作评论。
He commented that it was an excellent film.
他评论这电影很精彩。
10. distinguish vt. 区分，辨别
Its im
portant to distinguish fact from fiction.
把现实与虚构区分开来是很重要的。
We should distinguish between right and wrong.
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