短語(yǔ)詞組短語(yǔ)structured English query language SEQUEL 結(jié)構(gòu)化英文查詢語(yǔ)言SEQUEL Structured English QUEry Language 結(jié)構(gòu)英語(yǔ)查詢語(yǔ)言 返回 structured english query language