| 词汇 | upgrade |
| 词根词缀 | 词源： upgrade (n.) 1873, "upward slope," from up + grade. The meaning "upgraded version" is recorded from 1980; the verb in this sense is attested from 1920 (implied in upgrading). 词根记忆： v. 提升,使升级The degraded undergraduate upgraded the underlying virus program.被降职的大学生升级基础的病毒计划. v. 上升,升级(up向上+grade→向上升级)[grad=step,grade,表示"步,级"] n. 升级;上升(up+grade等级→升级)[up=up,over表示"向上"] 词根词缀： upgrade upgrade v 上升,升级(up向上+grade=向上升级) grad=step,grade,表示”步,级” grade n 等级,阶级gradient a 步行的n. 坡度(grad+ient) gradation n 等级,层次(grad+ation) gradual a 逐步的(grad+ual) graduate v/n 毕业,分级(grade 步+uate=完成所有步骤=毕业) graduation n 毕业(graduate+ion) degrade v 降级,退化(de向下+grade=向下降级) degrading a 不名誉的,可耻的(de+grad+ing=向下降了=不名誉的) retrograde v 退步,堕落(retro向后+grade=向后退步) upgrade v 上升,升级(up向上+grade=向上升级) downgrade v 贬低,降低(down向下= grade=向下贬低) centigrade a 百分度的( centi百+grade级,度) upgrade n 升级,上升(up+grade等级=升级) up=up,over表示”向上” upbraid v 叱骂,谴责(up+braid辫子=向上抓辫子=谴责) upheaval n 隆起,动乱(up+heavel举起=举起来=动乱) uphold v 支持,拥护(up+hold=向上拿住=拥护) uproot v 连根拔,根除(up+root根=根向上=根除) upturn n (价格) 上涨,转好(up+turn转=向上转=上涨) upgrade n 升级,上升(up+grade等级=升级) upbound a 上行的,上水的(up+bound向….方向走=向上方向走) upfront a 显著的,重要的(up+front前面=又在前面,又在上面=显著的) backup n 支持(back背后+up=背面向上推=支持) setup n 设置,设立(词组set+up的合写) |
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