Read Edit View history 海胆 hǎidǎn sea urchin Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 海胆/海膽 · hǎidǎn · sea urchin 2026/03/04 海胆 / 海膽 hǎidǎn sea urchin (zoology) sea urchin 我不小心踩到了海胆。 noun created sense Mar 4, 2026, 02:25 AM