noun🔗Share脊索，notuosuo A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine"Even though humans develop a vertebral column, in the early stages of embryonic development, we possess a notochord, a flexible rod that provides support. "即使人类最终会发育出脊柱，但在胚胎发育的早期阶段，我们仍然拥有脊索 (notuosuo)，它是一根提供支撑的柔韧杆状结构，相当于原始的脊椎。anatomybiologyorganismanimalbodypartstructureChat with AIVocabulary GamePractice Reading
noun🔗Share脊索, 脊柱雏形 A similar structure found in the embryos of vertebrates from which the spine develops"During development, the embryo of a fish has a notochord, which is eventually replaced by a spine. "在发育过程中，鱼的胚胎会有一个脊索，这个脊索最终会被脊柱取代。anatomybiologyorganismbodypartstructuresciencephysiologyChat with AIVocabulary GamePractice Reading
