I don't see any scratches on the outside and the inside is clean, too.

我看不出外面有什么刮痕，里面也很干净。

youdao

These two elements overlap and interact to maintain a constant flow between the outside and the inside.

这两个元素之间相互重叠并且相互作用，以此来保持内外空间的不断流动。

youdao

Zongzi is a triangle, the outside green, sharp and hard, but also the inside soft and white, like a green blanket wrapped a baby.

粽子是一个三角形，外面是绿色的，尖尖的硬硬的，但是里面又白又软，很像是一个包着婴儿的绿毯子。

youdao

A protective coating of colloidal silver is painted on the inside and outside of the filter to kill bacteria.

VOA: special.2009.06.22

so, essentially, they're establishing or controlling or changing the difference between the charge inside the cell and the charge outside cell.

因此本质上来说，它们制造或者控制或者改变,细胞内外电荷之间的电位差。

麻省理工公开课 - 化学原理课程节选

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

There are two differing viewpoints of the financial services industry, the view from the outside and the view from the inside.

FORBES: Magazine Article

But no, he reassured himself, this was human and harmless, this sheltered contact while the rain thrashed outside and the light inside the rooms dimmed by imperceptible notches.

NEWYORKER: Outage

When roasted, the skin becomes crispy on the outside and juicy on the inside.

BBC: Sampling Beijing��s imperial duck