Uncontaminated

[,ʌnkən'tæmɪnetɪd]

解释:

(adj.) free from admixture with noxious elements; clean; 'unpolluted streams'; 'a contaminated lake' .

(adj.) not corrupted by contact or association; 'there is no culture uncontaminated by contact with the outside world' .

校对:齐利格--From WordNet