污染 /wūrǎn/ angolul

contamination [contaminations]▼(The act or process of contaminating)
noun
[UK: kən.ˌtæ.mɪ.ˈneɪʃ.n̩] [US: kən.ˌtæ.mə.ˈneɪʃ.n̩]

pollution [pollutions]▼(the contamination of the environment by harmful substances)
noun
[UK: pə.ˈluːʃ.n̩] [US: pə.ˈluːʃ.n̩]