| 单词 | rock formation |
| 释义 | > as lemmasrock formation rock formation n. ΚΠ 1804 Brit. Critic Dec. 643 We..must endeavour to ascertain, not only the rock formation in which it [sc. a fossil] occurs, but also its repository. 1917 Proc. National Acad. Sci. U.S.A. 3 659 Recent monographs.., dealing with certain rock formations in Switzerland, put new emphasis on an important problem in minerogenesis. 1992 New Scientist 1 Feb. 48/1 Huge boulders sometimes lie where they do not belong, far from their native rock formations. < as lemmas |
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