| 单词 | coralline crag |
| 释义 | > as lemmascoralline crag coralline crag n. Geology the lowest member of the ‘Crag’ or Pliocene series of Norfolk and Suffolk, consisting of shells and ‘corallines’ (Polyzoa) imbedded in calcareous sand.extracted from corallinen.1< as lemmas |
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