noun 下载 🔗分享 脊柱，脊椎。 The spinal column, or the vertebrae of the spine. Examples : "The doctor examined the patient's rachis to see if there were any problems with their spine. " 医生检查了病人的脊柱，看看脊椎是否有问题。 anatomy body medicine physiology organism biology science 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 轴，中心轴。 An anatomical shaft or axis in a marine invertebrate. Examples : "The brittle starfish's rachis, running down the center of its arm, provides structural support. " 这条脆海星手臂的中心轴贯穿其中心，为其提供结构支撑。 anatomy organism animal biology 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 羽轴，羽干 The central shaft of a feather. Examples : "The feather's rachis provided a strong, central support for the barbs, making it ideal for flight. " 羽毛的羽轴为羽片提供了坚固的中心支撑，使其非常适合飞行。 anatomy bird biology part organism 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 叶轴，穗轴，羽轴 The main shaft of either a compound leaf, head of grain, or fern frond. Examples : "The rachis of the fern frond supported many delicate leaflets. " 这片蕨类叶子的羽轴支撑着许多纤细的小叶片。 biology plant part structure 与AI对话词汇游戏阅读练习
