They are visually detached from the external walls, so that the central living space is optically larger, and allows more freedom for internal routes and organisation.

在视觉上，盒子都脱离了外墙，这样中心的起居空间在视觉上就变大了，而且室内的通行路线和空间的组织也更加自由。

youdao

Canada considers all five routes through its Arctic archipelago to be internal, not international, waters; the United States and others disagree.

加拿大把通过北冰洋群岛的所有五条航线看做是本国水域而非国际性的，而这种说法美国与其它国家都一致反对。

youdao

Eventually, that might even lead to European airlines being allowed to fly on domestic routes within the United States in return for US carriers being allowed to operate on internal EU routes.

ECONOMIST: Pterodactyls across the Atlantic | The

Taiwan is an overcrowded island of 22m people, whose roads, railways and even internal air-routes are clogged.

ECONOMIST: Project finance in Taiwan