十几年后，这种甲壳纲动物将长到拖拉机轮胎大小。
After a dozen years, the crustacean will grow to the size of a tractor tire.
研究者在俄克拉荷马采石场的页岩层发现这些70毫米的甲壳纲动物。
Researchers found the 70-millimeter crustacean in the dark shale of an Oklahoma quarry.
巨型等足目动物与虾和蟹有关，是以海底为家的深海甲壳纲动物。
Related to shrimp and crabs, the giant isopod is a deep-sea crustacean that makes its home on the ocean floor.
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