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单词 staircase shell
释义

Definition of staircase shell in English:

staircase shell

noun
  • another term for wentletrap
    Example sentencesExamples
    • Normally these staircase shells, as wentletraps are also called, never leave their coral hosts.
    • "These "staircase shells" are delicately graceful in shape, which makes them a favorite of shell collectors.
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更新时间：2026/9/1 10:07:55