| 单词 | ddd |
| 释义 | DDD in American English (ˌdiˌdiˈdi) US noun a colorless, crystalline insecticide, (ClC6H4)2CHCHCl2, closely related to DDT but considered to be less toxic to animals; TDE Word origin d(ichloro)d(iphenyl)d(ichloroethane) |
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