Structurally speaking, you've got fibrous, cartilaginous, and synovial joints.

从结构上来说，你有纤维关节、软关节滑膜关节。

As for cartilaginous fish, Conseil went on unflappably, they consist of only three orders.

至于软类，康塞尔很冷静地又说，就只有三目。

Their cartilaginous skeletons are less dense than bony ones and require less energy to move.

这生理特质从4亿多年中进化而来它们软质的架比硬的架更轻。

Yes, of course. So which type of joint can you crack? Is it … a) fibrous? b) cartilaginous? Or c) synovial?

当。你能掰响哪一种关节？是a)纤维性关节? b)软性关节? c)滑液性关节?

These are distant, cartilaginous cousins of sharks that live in the deep sea today.

这是今天生活在深海中的鲨的远亲软表亲。

In their wake, bony fish and cartilaginous fish like sharks and rays took over the oceans.

在它们的身后，硬软如鲨鳐接管了海洋。

Spoken like a true glutton, Conseil replied. But tell me, are you familiar with the differences between bony fish and cartilaginous fish?

这是讲究吃喝的人的一种分类法，康塞尔回答，请您告诉我，您知道硬类软类之间存在的差别吗?

Several of these classes are specific types of fish, for example: jawless fish, like lampreys and hagfish, and cartilaginous fish, like sharks and rays.

这纲类的一便是类，比如：无颚纲形动物，像七鳃鳗、盲鳗软纲，像鲨魔鬼。

If we look at the really successful features of sharks you've got to consider this cartilaginous skeleton – that's no bone in the skeleton.

如果我们研究鲨真正成功的特征，你必须要考虑到软架——是指架中没有头。

The canal is divided into two parts: (a) cartilaginous and (b) bony (a) Cartilaginous Part It forms outer one-third (8 mm) of the canal.

耳道由两部分组成：软部分质部分。（a）软部分它组成了管道的外部三分之一（8 毫米）。

We should remember that the skull at this early age is cartilaginous and flexible, so that it readily yields to muscular action.

我们应该记住， 这小的头是软柔韧的， 因此它很容易屈服于肌肉活动。

Because their skeletons were cartilaginous, what remains of megalodons are mostly scattered clues, like some isolated vertebrae and lots of their enamel-protected teeth.

因为巨齿鲨的骼是软质的，所以留下的大部分都是零散的线索，比如一孤立的椎许多受牙釉质保护的牙齿。

There's a magnificently well preserved dinosaur from Italy, which includes the cartilaginous tracheal rings, still preserved in the throat, and muscle fibers at the base of the tail.

有一种来自意大利的保存完好的恐龙，它包括仍保存在喉咙中的软气管环尾巴底部的肌肉纤维。

As you might guess, your cartilaginous joints unite bones using cartilage, and are similar to their fibrous brethren in that they don't move very much, and they lack a joint cavity.

正如你可能猜到的，你的软关节用软连接头，它们的纤维兄弟相似，它们不怎移动，也没有关节腔。

OK, if you say so, Professor. And since you're in a scientific mood, how about answering today's quiz question. Which type of joint can you crack? Is it … a) fibrous? b) cartilaginous? Or c) synovial?

好吧，随你怎说吧，大教授。既你想谈论科学，就来回答一下今天的测试题吧。人体的哪一个关节可以被掰响？是a)纤维性关节? b)软性关节? c)滑液性关节?