unpolluted
US /ˌʌn.pəˈluː.t̬ɪd/
UK /ˌʌn.pəˈluː.tɪd/
形容词
未受污染的, 洁净的
not contaminated by pollutants; clean
示例:
•
We enjoyed the fresh, unpolluted air in the mountains.
我们享受了山区清新、未受污染的空气。
•
The lake remains beautifully clear and unpolluted.
湖水依然清澈美丽，未受污染。