单词	rarefying
释义	同rarefy
随便看	natural key natural killer cell natural killer cell {= nk} natural killer cells natural landscape natural landscape zone natural languae natural language natural language analysis natural language application natural language communication natural language comprehension natural language computer natural language computer，nlc natural language database natural language database--nldb natural language database，nldb natural language explanation natural language generation natural-language indexing system natural language information system natural language input natural language interface natural language interface--nli natural language interface，nli