Every unit in this book consists of a dialogue with comprehension questions and vocabulary and pronunciation exercises, as well as a section that focuses on grammar.

这册书中的每一个单元的对话都涉及到了阅读理解、单词、和音标的练习，同时还是包括了语法。

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But dialogue on Korean peninsula security, including the issue of military exercises, could help prevent further misunderstanding and miscalculation.

BBC: Viewpoint: What is driving North Korea's threats?