Including: earth resources, such as oil and coal.

包括地球资源如石油、煤。

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Including outside reasons, such as social environment, information system, etc. too.

也包括社会环境、信息系统等外部原因。

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Including outside reasons, such as social environment, information system, etc. too.

也包括社会环境、信息系统等外部原因。

youdao