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Then it proves a necessary and sufficient condition for anamalgamation of two 3-manifolds with toms boundary with no new incompressible surfaces.Lastly, with the help of the condition and the theorem about the classification of allautomorphisms of a torus, it is proveed that there exists infinitely many 3-manifolds each ofwhich contains no incompressible surfaces besides a torus.

最后，文章给出了以环面作为边界的两个3维流形在作融合积时不产生新的不可压缩曲面的一个充分必要条件，并将这个结果与关于环面到自身的自同胚类的分类的结果相结合，证明了本文的一个核心结论，即存在无穷多个互不同胚的3维流形满足除了一个环面以外不含有其他的不可压缩曲面。

And yet you are sure, as I am sure, that were the world confined to these hard-headed, hard-hearted, and hard-fisted methods exclusively, were there no one prompt to help a brother first, and find out afterwards whether he were worthy; no one willing to drown his private wrongs in pity for the wronger's person; no one ready to be duped many a time rather than live always on suspicion; no one glad to treat individuals passionately and impulsively rather than by general rules of prudence; the world would be an infinitely worse place than it is now to live in.

可是你也确信，如同我也确信，如果世界只剩下精明、冷酷而且吝啬的话，将没有人会急著对兄弟伸出援手，而不管是否值得为他们这麼做；也不会有人怜悯犯错的人而愿意抿除私怨；大家会只愿活在对人的猜忌中，而不会有人愿意屡屡受骗；也将不会有人充满热情对待别人而不先计算利害得失。这样的世界，一定会比现在坏上无数倍而不堪人居。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。