1. Here, sitting on that rock, with the blue sky - it is astonishingly blue - the air is so pure, unpolluted. 在这里，坐在岩石上，和蓝天在一起，天惊人的蓝，空气是那么纯净，未被污染。
2. In order to purify the environment of coking, a dust remove control system with good performance is needed to realize unpolluted production. 为了净化炼焦生产环境，需要一个性能良好的除尘控制系统实现无污染生产。
3. It is here on unpolluted grass based pastures that the world renowned high quality New Zealand velvet is grown by strong, fit, free-ranging deer. 举世闻名的高品质纽西兰鹿茸便来自于在清净无污染之牧草地上以自由放牧方式生长的强壮而健康的鹿群。
英英解释
adj.
1. free from admixture with noxious elements; clean
