Structurally, the appendix is isolated from the rest of the gut, with an opening smaller than a pencil lead, protected from the fecal stream that might be carrying pathogens.

从构造上看，阑尾位于盲肠的末端，不与其他部分连结。 它有一个比铅笔心还细的开口，防止了可能携带病原菌的废物流入其中。

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Protected by mountains from cold continental winds and at the same time opening onto the warm sea, Gagra is one of the best places for relaxation in Soviet Union.

后依大山，挡住陆上冷风，面朝大海，拥抱温暖的海洋，加格拉是苏联境内最佳度假地点之一。

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An opening set high up in the rear elevation is protected by a folded steel hood and is intended to resemble a church window that only lets in light at certain times of the day.

亭子后墙设置的高高的开口处有折叠钢罩，很像是教堂里的窗户，光线通过这个进口在白天特定的时间里才能进入室内。

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Their governments supported the liberal services directive, which favoured their mobile, comparatively cheap workforces, but have expressed doubts about opening protected home markets to competition.

ECONOMIST: Europe's postal services

Others note that Mr Bush's speech also repeated his support for un-green measures such as his Clear Skies Initiative, a bill to regulate emissions from power plants that excludes carbon dioxide (the principal greenhouse gas responsible for global warming), and his energy bill, which strongly boosts coal and nuclear power and proposes opening up protected areas of Alaska to oil-drilling.

ECONOMIST: Clean energy

These could range from an overhaul of the tax code to deregulation of farming and the opening up of protected areas of the economy, such as transport and energy, to foreign competition.

ECONOMIST: Japan's debt problem