Some people regard video games as harmless fun, or even as a useful educational tool. Others, however, believe that videos games are having an adverse effect on the people who play them. In your opinion, do the drawbacks of video games outweigh the benefits?有人认为视频游戏是无...
aWe emphasize that Assumption 2.1 is introduced primarily to simplify our exposition and to facilitate the discussion of the key ideas without having to worry about degenerate cases. 我们强调主要介绍假定2.1简化我们的博览会和促进关于关键想法的讨论,无需必须担心退化案件。[translate] ...