breathing hole

A polar bear may sit for hours at a breathing hole, waiting for a seal to surface.

一头北极熊会在呼吸口边坐上数个小时等待海豹出来换气。

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To avoid predators, they'll burrow even deeper, leaving only a hole for breathing.

为了避免掠食者, 它们会挖洞甚至更深, 只留下一小孔为了呼吸.引自:“美国国家地理杂志”,当天的图片.

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on his right lower arm the man had two solitary, furuncle-like lesions with a central breathing hole.

在他的右前臂有两个孤独的人，疖样病变中央呼吸孔。

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They know that a seal swimming under the ice will keep a breathing hole open by its warm breath, so they will wait beside the hole and kill it.

他们知道在冰面下面游滳的海蹹呼吸的热渔会使冰面上出现洞口，于是他们帱在洞旁守侯并捕杀海蹹。

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The only way for air to go inside HDA is through the breathing hole.

唯一的途径空气进去HDA的是通过呼吸孔。

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And tourists breathing hole on the closed section of the humidity will have an appreciable effect.

而游客的呼吸对封闭洞段的湿度也有一定的影响。

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