英语词汇understratum怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	understratum
释义	un·der·stra·tum /ˌʌndəˈstrɑːtəm，-ˈstreɪ-，-ˈstræ-/([复] -ta /-tə/ 或 -tums) n. = substratum
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