俄语的分析化发展趋势是语言内外因素共同作用的结果，与使用者认知心理的变化、语言演变的经济原则和语言接触等因素有关。

The trend can be attributed to both exterior and interior factors, like the users cognition and psychology, principle of economy, language change and language contact.

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第四部分，从外因和内因两方面解析了美国会堂演变的原因。

Part four examines the reason internal and outside for the evolvement of the synagogue.

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湖南客家方言的演变有外因和内因两种。

This paper discusses the inner and outer causes of changes of Hakka Dialects in Hunan Province.

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