名词污染(作用); 腐败; 堕落; 沾污
名词
1. We have freed the lake from pollution. 我们已经清除了该湖的污染。
2. She was horrified by all the pollution on the beach. 她对海滩上的污染感到震惊。
3. The men were clearing all the pollution off the shore. 人们在清除海滩上的污染物。