adj. uncontaminated
总体来说，有机食品是一种未被污染的食品。
Organic food refers to food that is by - and - large untainted by pollution.
当第一批欧洲人登陆北美海岸时，这个新大陆是肥沃而且未被污染的。
The new country was fertile and unblemished when the first Europeans landed on the shores of North America.
这是度假者梦寐以求的地方：一片有阳光、阴凉处和未被污染的海水而又远离喧嚣的沙滩。
It's a vacationer's dream: a secret beach tucked away from the masses, with shade, sun and pristine water.
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