Some objects do not allow light to go through them. 有些物体是不透光的。
The ability to gather oxygen with its arm webbing enables it to live in the oxygen minimum layer of the ocean, where there is virtually no light penetration. 其触手间的薄翼可以吸取水中的氧元素，这种能力使其能够在海洋里暗不透光的低含氧层中生存。
