| 释义 |
contaminatecontaminate /kənˈtæməˌneɪt/ ●○○ verb [transitive] ETYMOLOGYcontaminateOrigin: 1400-1500 Latin, past participle of contaminare, from contamen contact VERB TABLEcontaminate |
| Present | I, you, we, they | contaminate | | he, she, it | contaminates | | Past | I, you, he, she, it, we, they | contaminated | | Present perfect | I, you, we, they | have contaminated | | he, she, it | has contaminated | | Past perfect | I, you, he, she, it, we, they | had contaminated | | Future | I, you, he, she, it, we, they | will contaminate | | Future perfect | I, you, he, she, it, we, they | will have contaminated |
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| Present | I | am contaminating | | he, she, it | is contaminating | | you, we, they | are contaminating | | Past | I, he, she, it | was contaminating | | you, we, they | were contaminating | | Present perfect | I, you, we, they | have been contaminating | | he, she, it | has been contaminating | | Past perfect | I, you, he, she, it, we, they | had been contaminating | | Future | I, you, he, she, it, we, they | will be contaminating | | Future perfect | I, you, he, she, it, we, they | will have been contaminating |
THESAURUSsubstances that make air, water, soil, etc. dirty and harmful to humans and other living things► pollutionsubstances that make air, water, soil, etc. dirty and harmful to humans and other living things: Car exhaust emissions are a major source of pollution. ► smog dirty air in cities, caused especially by smoke from cars and trucks: The smog was so bad you couldn’t see the mountains from the city. ► greenhouse gases gases that surround the Earth and stop heat from escaping so that the air around the Earth gradually becomes warmer: The U.S. produces 25% of the world’s greenhouse gases. ► acid rain rain that has harmful acid in it, caused especially by smoke from cars and factories: Acid rain has killed the fish in the lake. ► contamination the fact of being dirty and unsafe to use, because harmful chemicals or other substances are there: Radioactive contamination was detected in the pipes. 1to spoil a place or substance by adding a dangerous or poisonous substance to it: Lead in plumbing can contaminate drinking water.2to influence someone or something in a way that has a bad effect: Publicity before the trial can contaminate a jury. [Origin: 1400–1500 Latin, past participle of contaminare, from contamen contact]—contamination /kənˌtæməˈneɪʃən/ noun [uncountable]► see thesaurus at pollution |