superstratumWiktionary 原文构词拆分super-前缀located above; (anatomy) superior in position · a more inclusive category+stratum词根/词干词源说明From super- + stratum.释义（英文）名词 Noun(geology) A stratum that is on top of another(linguistics) A language imposed upon a population that previously spoke another language词族相关词（3）superstratalsubstratumsubstrate