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.
互联网
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.
互联网
"his unsullied name"
"an untarnished reputation"