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。
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。
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。
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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