noun 下载 🔗分享 突起,隆起,凸出物 A bulge, knob, swelling, spine or anything that protrudes. Examples : "The old tree trunk had several strange protuberances, making it difficult to hug comfortably. " 那棵老树干上长着好几个奇怪的突起,让人很难舒服地拥抱它。 appearance body anatomy physiology part 与AI对话词汇游戏阅读练习