| 单词 | ddt |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔POP〕DDT, a POP used in insecticides滴滴涕, 一种用于杀虫剂中的持久性有机污染物外研社新世纪〔detoxified〕Mosquitoes detoxified DDT.蚊子对滴滴涕有抗药性。21世纪英汉〔organochlorine〕Any of various hydrocarbon pesticides, such as DDT, that contain chlorine.有机氯：一种含氯的碳氢化合物杀虫农药，如滴滴涕杀虫剂美国传统〔synthesize〕DDT is a pesticide that was first synthesized in 1874.滴滴涕是最初合成于 1874 年的杀虫剂。朗文当代Nowadays, DDT is not used much because some insects have become immune to it, and also because it does not break down naturally into harmless substances and can therefore harm other living things.如今滴滴涕已不太用了，因为有些昆虫对它已具备了免疫力，并且，它不会自然地转化成无害物质，从而可能害及其他生物。剑桥国际 |
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