untainted

英 [ʌn'teɪntɪd] 美[ʌn'tentɪd]

Organic food refers to food that is by - and - large untainted by pollution.: 总体来说,有机食品是一种未被污染的食品.

One finds good and bad smells in the air, but the air itself is untainted.: 人可以从空气的气味中发现好与坏, 但空气本身却不受好与坏的影响.