| 单词 | shell-less | 
| 释义 | shell-lessadj.  Without a shell or shells. ΘΚΠ the world > animals > animal body > general parts > covering or skin > 			[adjective]		 > having a hard protective covering > having a shell > not having a shell shell-less1777 1777    G. White Let. 20 May in  Nat. Hist. Selborne 		(1789)	 217  				Myriads of small shell-less snails. 1838    Penny Cycl. X. 486/2  				In the Frog-tribe the ova..are shelless [sic], and generally laid in the water. 1843    Penny Cycl. XXVII. 272/2  				Shell-less mollusks. 1859–62    J. Richardson  et al.  Museum Nat. Hist. 		(1868)	 II. 358  				Gymnosomata (Shell-less Pteropods). This entry has not yet been fully updated (first published 1914; most recently modified version published online December 2020). <  | 
	
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