| 例句 |
contaminantnoun something that is or that makes impurea filter to remove contaminants from the drinking water adulterant, contamination, defilement, impurity, pollutant blot, blotch, spot, stain, taintdirt, filth, grime, muck, scum, sludge, smut, soilblemish, defect, disfigurement, fault, flawabnormality, imperfection, irregularity clarifier, filter, purifier, refinercleanliness, immaculateness, purity in 1922 |