The main point of the book is to illustrate the interplay between abstract theory and specific examples.

这本书的重点是说明抽象的理论与具体的实例，相互作用。

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Syntax tagging is the main and most difficult point of corpus tagging, and should be based on syntax theory.

句法标注是语料标注的重点、难点所在，必须以一定的句法理论为基础。

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Then the paper comes to its main point: the theory and method of financial decision-making of shipping companys affreightment businesses.

接下来研究的是本文的主要问题：航运企业租船业务财务决策的理论和方法。

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