noun 下载 🔗分享 三叶虫 An extinct arthropod of the class Trilobita, whose body had three large lobes. Examples : "While studying fossils in class, Sarah learned that a trilobite is an ancient sea creature with a body divided into three distinct parts. " 萨拉在课堂上研究化石时了解到,三叶虫是一种古老的海生生物,它的身体明显地分为三个部分。 archaeology animal biology geology organism science history 与AI对话词汇游戏阅读练习