noun🔗Share无脊椎动物，无脊椎生物。 An animal without vertebrae, i.e. backbone."The earthworm is an invertebrate because it does not have a backbone. "蚯蚓是一种无脊椎动物，因为它没有脊椎骨。animalbiologyorganismnatureChat with AIVocabulary GamePractice Reading
noun🔗Share没骨气的人，懦夫 A spineless person; a coward."He backed down from the argument so quickly; what an invertebrate! "他那么快就从争论中退缩了，真是个没骨气的人！characterpersonattitudeChat with AIVocabulary GamePractice Reading
adjective🔗Share无脊椎的，没有脊椎的 Lacking a backbone."The jellyfish, a fascinating invertebrate animal, drifts gently in the ocean currents. "水母是一种奇妙的无脊椎动物，随着洋流缓缓漂动。organismanimalbiologyChat with AIVocabulary GamePractice Reading
