noun 下载 🔗分享 耳石, 平衡石 A small particle, comprised mainly of calcium carbonate, found in the inner ear of vertebrates, being part of the balance sense. Examples : "The doctor checked my balance by testing how my otolith reacted to changes in head position. " 医生通过检查我的耳石对头部位置变化的反应来测试我的平衡能力。 anatomy physiology organ biology medicine body 与AI对话词汇游戏阅读练习