Today a man is supposed to walk on the outside.

今天，一个人应该在外面走走。

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For example, experiments can be placed on the outside of a spacecraft.

例如，实验可以在航天器的外部进行。

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The wagon's paint was badly chipped on the outside.

这辆四轮马车外壳的油漆严重地剥落。

《柯林斯英汉双解大词典》

So a tiny bit of the outside is melted and is left with this really thin glass on the outside."

VOA: special.2010.07.28

The positive force of attraction of the electrons on the outside is greater and greater, and that pulls everything in.

所以对外层电子的吸引力,会越来越强，把电子们都向内吸引。

麻省理工公开课 - 固态化学导论课程节选

I mean, on the outside they all look pretty similar,

我是说，从外表上来看，它们看上去很相似，

伦敦的金融中心地 - SpeakingMax英语口语达人

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

BBC: Sampling Beijing��s imperial duck

Old men lean on the outside windowsill, ordering cortados (espresso with milk) and empanadas to go.

BBC: In search of Miami��s Cuban sandwich

Photographs from the 1920s on the outside walls of the houses show what has changed: nothing, essentially.

BBC: The perfect trip: Provence and the C?te d��Azur