名词

1. （尤指有毒化学品造成的）污染
Pollution is the process of polluting water, air, or land, especially with poisonous chemicals.

2. 污染物
Pollution is poisonous or dirty substances that are polluting the water, air, or land somewhere.

1. the act of contaminating or polluting
including (either intentionally or accidentally) unwanted substances or factors

Synonym: contamination

2. the state of being polluted

Synonym: befoulmentdefilement

3. undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities