Based on detailed analysis of the advance for ecosystem service function and its value assessment, the connotation and definition of Marine ecosystem is discussed.

本文在系统分析生态系统服务功能及价值评估的研究进展基础上，探讨了海洋生态系统服务功能的内涵。

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Thinking heterogeneous constructivism has not formed for the definition of constructivism, connotation, and so common understanding.

建构主义思想庞杂，至今没有形成对于建构主义的定义、内涵等的统一认识。

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Secondly, we must understand the definition and connotation of style.

其次，我们必须了解的定义和内涵的风格。

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