The internal and external situation of erythromycin sclerotherapy is introduced.
现就红霉素的硬化治疗新用途的国内外现状加以介绍。
The core of the informative function of language is external situation , the facts of a topic, reality outside language, including reported ideas or theories.
信息型文本强调语言的信息功能。语言信息功能的核心是外在的语境，话题的事实， 语言之外的因素等。
The core of the informative function of language is external situation , the facts of a topic, reality outside language, including reported ideas or theories.
信息型文本强调语言的信息功能。语言信息功能的核心是外在的语境，话题的事实， 语言之外的因素等。
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