海胆是另一种棘皮动物的例子。

Sea urchins are another example of an echinoderm.

海胆的有刺的壳保护它免受捕食者的伤害。

The spiculate shell of the sea urchin protects it from predators.

海胆：一种海胆属的海胆。

Echinus:a sea urchin of the genus Echinus.

海胆: 一种海胆属的海胆.

Echinus: a sea urchin of the genus Echinus.

即置海胆于意大利面上.

Add sea urchin on top of the taglierini.

海獭是海胆的主要捕食者。

Sea otters are the major predators of sea urchins.

一大群紫海胆正在发动进攻。

An army of sea urchins is mounting an attack.

将海胆的外壳撬开后,就是美味的海胆卵.

Prise open the shell to sea urchins , sea urchin eggs is delicious.

海胆海胆是海洋里一种古老的生物，它在地球上已有上亿年的生存史。

Sea urchin Sea urchins are an ancient biology, it has been on earth millions of years on the survival of history.

没了海獭约束海胆，海胆的数量变得庞大起来。

Without sea otters keeping sea urchins in check, their population has exploded.