| 例句 |
contaminationsnounpl. of contamination something that is or that makes impureswimming in the lake is banned until the contamination is identified and neutralized adulterants, contaminants, defilements, impurities, pollutants blotches, blots, spots, stains, taintsdirt, filth, grime, muck, scums, sludges, smut, soilblemishes, defects, disfigurements, faults, flawsabnormalities, imperfections, irregularities clarifiers, filters, purifiers, refinerspurities |