| 单词 | superstratum | 
| 释义 | su·per·stra·tum   (spər-strā′təm, -străt′əm) n. pl.   su·per·stra·ta (-strā′tə, -străt′ə)  1.  One layer or stratum superimposed on another. 2.  Linguistics   The language of a later, invading people imposed on and leaving features in an indigenous language. super·stra′tal adj. | 
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