| 词汇 | mermaid-s purses |
| 词源 | mermaid’s purses; mermaid’s glove. The horny skate, ray, and shark egg cases often washed up on the beach by wave ac- tion are popularly called mermaid’s purses. A mermaid’s glove is a British sponge (Halichondria palmata) whose branches re- semble human fingers. |
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