Sea urchins are perhaps best known for their armor of spines.
海胆也许最出名的是它们的刺甲。
我找了很多的海胆。
海胆可以看见你吗？
Sea urchins are a constant annoyance.
海胆永远是一个骚扰者。
Sea urchins and sea stars are close relatives.
海胆和海星是近亲。
Sea otters are the major predators of sea urchins.
海獭是海胆的主要捕食者。
Sea urchins have a powerful appetite for kelp.
海胆对于海藻有着极强的食欲。
It's been transformed into its present state by sea urchins.
因为海胆它变成了现在这幅模样。
But the urchins have enemies, too, and the sunstar is a deadly one.
不过海胆也有它们的天敌，太阳海星就是其中致命的一种。
But the urchins have enemies, too, and the sunstar is a deadly one.
不过海胆也有它们的天敌，太阳海星就是其中致命的一种。
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