" It'd be doin' 'em an unkindness, Hermione, " he said gravely, threading a massive bone needle with thick yellow yarn.

“对他们来说不是一件好事，赫敏，”他严肃地说，用黄色粗纱线穿过一根粗大的骨。

The old woman sighed, whipped the wool twice round her thumb, and drew the bone needle through.

老太婆叹了口气， 用大拇指上的毛线打了两下， 把骨穿了过去。

Each arm can bend and curl, thanks to supportive plates made of stereom and special connective tissues that can go soft or stiff.

每条臂都可以弯曲和卷曲，得益于由骨和特殊结缔组织制成的支持板，些结缔组织可以变软或变硬。

" She was dead, " Varamyr said, wincing as her bone needle pierced his flesh. " Someone smashed her head. Some crow" .

" 她已经死了，" 瓦拉米尔说。她的骨刺穿皮肉，他不禁一缩。" 别人砸碎了她的脑袋。乌鸦干的。"

And the squid still swims around with its gladius intact, and the octopus with its stylets -- reminders of the history they share with the shelled creatures of the past.

而鱿鱼仍然， 内骨骼完好无损，章鱼则带它的骨——些都是它们与过去有壳生物共享历史的见证。

But there's no evidence that it had stereom - the stuff that makes up the internal skeleton of all echinoderms, so it could've just been another round animal like a jellyfish or a sponge.

但没有证据表明它拥有骨——构成所有棘皮动物内部骨骼的物质，所以它可能只是另一种圆形生物， 比如水母或海绵。

And scientists know that it was an echinoderm based on the material that made up its internal skeleton - a calcium carbonate matrix called stereom - which is a feature shared by all of the members of this group.

科学家们知道它是一种棘皮动物，是根据构成其内骨骼的物质——一种称为骨的碳酸钙基质来判断的，一特征是该类群所有成员共有的。