| 词汇 | virus |
| 词根词缀 | 词源： 1392, "venomous substance," from L. virus "poison, sap of plants, slimy liquid," probably from PIE base *weis- "to melt away, to flow," used of foul or malodorous fluids (cf. Skt. visam "poison," visah "poisonous;" Avestan vish- "poison;" L. viscum "sticky substance, birdlime;" Gk. ios "poison," ixos "mistletoe, birdlime; O.C.S. vinja "cherry;" O.Ir. fi "poison;" Welsh gwy "fluid, water," gwyar "blood"). Main modern meaning "agent that causes infectious disease" first recorded 1728. The computer sense is from 1972. Adjective form viral was coined 1948. 词根记忆： n. 病毒;(精神,道德方面的)有害影响The degraded undergraduate upgraded the underlying virus program.被降职的大学生升级基础的病毒计划. |
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