| 词汇 | filter |
| 词根词缀 | 词源： filter (n.) c.1400, from M.L. filtrum "felt," which was used to strain impurities from liquid, from W.Gmc. *filtiz (see felt). Of cigarettes, from 1908. The verb is from 1576; the fig. sense is from 1830. 词根记忆： n. 滤器,滤纸The tilted salt filters halt alternately for altering.倾斜的盐过滤器交替地停下以便改造. |
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