当出现新的或困难的材料时，几乎所有的听众都面临着一个挑战，因为人类的语言缺乏印刷文字的稳定性和持久性。
When new or difficult material is presented, almost all listeners are faced with a challenge, because human's speech lacks the stability and permanence of the printed word.
这种印刷文字太小，我看不清。
在她的打造下，一些刊物已经超越印刷文字的界线而进入通俗文化领域。
Under her, some titles have moved beyond the printed word and into popular culture.
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