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1·He went from door to door selling encyclopaedias.

他逐门逐户去推销百科全书。

2·He went from door to door, selling encyclopaedias.

他逐门逐户去推销百科全书。

3·It IS normally hard to get excited about encyclopaedias.

一般情况下，人们很难对一本百科全书而感到兴奋。

4·In the business world computers store information, so that we no longer need encyclopaedias and dictionaries.

在商业世界电脑存储信息，使我们不再需要的百科全书和词典。

5·Compared with printed encyclopaedias and public libraries, the web has democratised the collected wisdom of ages, and redistributed it in a way unimaginable a few decades ago.

万维网在数十年前就已经开始汇集大众的智慧和知识，相比印刷版的百科全书和公共书馆，它以一种不可思议的方式重新分配这些知识。