| 单词 | umbrella shell |
| 释义 | > as lemmasumbrella shell umbrella shell n. ΚΠ 1861 P. P. Carpenter in Rep. Smithsonian Inst. 1860. 234 Family Umbrellidæ. (Chinese Umbrella Shells.) 1881 Cassell's Nat. Hist. V. 226 The ‘Chinese Umbrella-shell’ has a small depressed Limpet-like shell, marked by concentric lines of growth. < as lemmas |
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