This report, summarizing poverty features, analyzes the internal and external causes of poverty.

调研报告在总结贫困特征的基础上，剖析了产生贫困的内部和外部原因。

youdao

The third chapter mainly analyzed and discussed the internal and external causes of NATO's transformation.

第三章主要分析和论述了北约转型的内因与外因。

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The internal and external causes of oxidation and the harm of oxygen in beer were described in this paper.

叙述了啤酒氧化的各种因素，以及氧对啤酒的危害性，并从生产工艺上提出了具体有效的防治措施。

youdao

So we'll be conducting both the internal activity as well as an external review immediately to ascertain the causes and circumstances under which this tragedy occurred.

CNN: O'Keefe: 'A tragic day for the NASA family'