| 释义 |
trilobite
UK ['traɪ.ləʊ.baɪt] US [-loʊ-] noun countable specialized
■a simple flat sea animal that lived in the earliest period of life on Earth, with a hard outer layer and a grooved (= patterned with long deep lines) body in three sections 三叶虫（一种简单的扁形海洋动物，是地球上最早出现的生物之一，有硬的外层，身体分成三节，上有长而深的坑纹） |