The bright red color of a fire urchin warns predators that its spines are poisonous. Sea otters are the major predators of sea urchins.(火海胆鲜红的颜色警告捕食者它的刺有毒。海獭是海胆的主要捕食者。)
He is a most wicked urchin.(他是个非常调皮的顽童。)
The sand around him was strewn with fossil shark teeth, sea urchin spines, and the bones of giant catfish.(四周的沙粒，散落着鲨鱼牙齿、海胆脊椎、巨型鲶鱼的化石。)
They compared sperm from a fruit fly, sea urchin, rooster, fish and human.(他们比较了果蝇、海胆、公鸡、鱼类和人类的基因。)
The grains here are tiny fragments of a baby sea urchin shell.(例如这些颗粒就是海胆幼体外壳上的碎片。)
A sea urchin is nestled in a coral formation off Bonaire Island.(一只海胆正舒适地安定在博内尔岛外的珊瑚丛里。)
An urchin girl stood there, wrapped in a huge shawl.(一个淘气的小姑娘裹着一条大头巾，站在那里。)
Alto. Listen, I know you don't like me because of the sea urchin thing.(听我说兄弟，我知道你不喜欢我，因为海胆那件事。)
I've started to get into maritime stuff, hence these urchin tea candles.(我已经开始迷上海洋的东西，因此这些海胆茶蜡烛。)
