| 单词 | boulder clay |
| 释义 | boulder clay in British Englishnoun an unstratified glacial deposit consisting of fine clay, boulders, and pebbles See also till4boulder clay in American Englishnoun Geology a glacial deposit consisting chiefly of unstratified clay with embedded boulders Word origin [1855–60]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: keyword, lavabo, output, pipeline, specialistExamples of 'boulder clay' in a sentence |
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