棘皮动物体表的一排孔,用于伸出管足等附肢
ambulacra — plural of ambulacrum
植树的散步道；房屋附近的林荫步道
棘皮动物体表的一排孔,用于伸出管足等附肢
A row of pores in an echinoderm, for the protrusion of appendages such as tube feet.
植树的散步道；房屋附近的林荫步道
A walk or promenade planted with trees, often near a house.
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