| 单词 | insidious |
| 释义 | in·sidi·ousBrE /ɪnˈsɪdiəs/ NAmE /ɪnˈsɪdiəs/ adjective (formal , disapproving ) spreading gradually or without being noticed , but causing serious harm 潜伏的；隐袭的；隐伏的◆ the insidious effects of polluted water supplies 供水系统污染的潜在恶果▸ in·sidi·ous·lyBrE /ɪnˈsɪdiəsli/ NAmE /ɪnˈsɪdiəsli/ adverb |
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