Tra từ uncontaminated - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

uncontaminated

un·con·tam·in·ated [uncontaminated] BrE [ˌʌnkənˈtæmɪneɪtɪd] NAmE [ˌʌnkənˈtæmɪneɪtɪd] adjective
not harmed or spoilt by sth (for example, dangerous substances)
•uncontaminated water
Opp: contaminated

Example Bank:
•The equipment is sterilized to ensure that the blood remains uncontaminated.
•The problems were made worse by the inadequate provision of medical help and uncontaminated milk.