| 单词 | boulder-period |
| 释义 | > as lemmasboulder-period boulder-period n. the geological epoch in which boulder-formations were being produced, the Ice Age or Glacial Period. ΘΚΠ the world > the earth > structure of the earth > age or period > [noun] > ice-age or glaciation ice time1841 boulder-period1845 glacial epoch1846 ice age1855 stage1895 little ice age1939 1845 C. Darwin Jrnl. (ed. 2) viii. 174 The ice-transporting boulder-period. < as lemmas |
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