noun🔗Share箭石，箭石类。 Any member of the extinct order †Belemnitida of Mesozoic marine cephalopods, very similar in many ways to the modern squid and closely related to the modern cuttlefish."While hiking along the coast, my daughter found a fossil shaped like a bullet; our science teacher later identified it as a belemnite, the internal shell of an ancient squid-like creature. "沿着海岸徒步时，我女儿发现了一个形状像子弹的化石；后来我们的科学老师鉴定说那是箭石，一种古代类似鱿鱼的生物的内壳。geologybiologyanimaloceanChat with AIVocabulary GamePractice Reading
