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substratum英英释意- 查字库
首页英语词典substratumsubstratum英英释意

substratum

英 [sʌb'strɑːtəm; -'streɪtəm] 美['sʌbstretəm]
  • n. 基础;根据;下层

英英释意


1. any stratum lying underneath another