一项新研究显示，手机并不会引起癌症——凸显出有关移动设备会否损害人类健康的争论是何等激烈。

Cell phones don't cause cancer, a new study revealed, heightening the debate over whether mobile devices harm humans.

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and I don't know how to phrase this in a politically correct way, but the parents of ugly kids are likely to themselves be ugly people and maybe what they're finding is just ugly people are more violent than good-looking people.

我不知道怎么用不会引起政治争论的话来说，但丑小孩的父母往往也长得丑,也许这个研究的发现是长得丑的人,比长得好看的人更粗暴。

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