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

VOA: special.2009.06.22

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

I'm going to go guard the Queen and stand outside the palace in my tunic.

我要去守卫女王，穿着制服站在宫殿外。

英国的军人 - SpeakingMax英语口语达人

Policy decisions both inside and outside America will determine whether this rebalancing is painful or easy.

ECONOMIST: America's economy

Several hundred people gathered near the ExCel centre in docklands and outside the Bank of England.

BBC: G20 death man 'had heart attack'

The involvement of game designers is a source of controversy both in and outside the school.

CNN: Gaming Reality