The boundary between the internal and external network has blurred over the years.

近年来，内部网络和外部网络的边界变得模糊。

youdao

This layer of greenery regulates the internal climate, encourages the growth of plants for food and distinguishes a boundary between inside and outside.

这一层绿色植物调节内部气候，支持可食用植物的生长，并区分内部和外部之间的边界。

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Generally, exterior boundary is restricted by exterior system information disclosure, i. e. legal laws and regulations, while internal boundary is restricted by the frame of corporation governance.

通常外部边界由信息披露的外部制度即法律法规来决定，内部边界则由公司治理框架来决定。

youdao

There's no point where the circulatory system crosses the boundary between being inside you and outside of you, it's totally internal.

循环系统绝不会,跨越人体的内外界限,它完全位于体内

耶鲁公开课 - 生物医学工程探索课程节选

The internal debate within Israel must be resolved in order to define Israel's permanent legal boundary.

NPR: Jimmy Carter on Conflict in the Middle East