| 词汇 | glacial period | 
| 释义 | glacial period  noun [ C ]  geology specialized uk/ˈɡleɪ.ʃəl ˌpɪə.ri.əd/ us/ˈɡleɪ.ʃəl ˌpɪr.i.əd/  冰(川)期,冰河时代 a time in the past when the temperature was very cold and glaciers covered large parts of the earth Synonym: ice age | 
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