| 词汇 | occasion |
| 词根词缀 | 词源： occasion (n.) late 14c., from O.Fr. occasion, from L. occasionem (nom. occasio) "opportunity, appropriate time," from occasum, pp. of occidere "fall down, go down," from ob "down, away" + cadere "to fall" (see case (1)). The notion is of a "falling together," or juncture, of circumstances. The verb is first attested 1520s. 词根记忆： n. 场合,时节,时刻;时机,机会He seized the occasion to invite her home for dinner.他抓住机会邀请她回家里吃饭. 发生;时机(oc使+cas落下+ion→使…落下→事情发生)[cad,cas,cid=fall,表示"落下,降临"] 词根词缀： occasion occasion发生,时机(oc使+cas落下+ion=使…落下=事情发生) cad, cas, cid=fall,表示”落下,降临”casual偶然的(cas+ual=落下的=不是安排好的=偶然的) casualty事故,灾难(casual+ty=[突然]落下的事=事故) occasion发生,时机(oc使+cas落下+ion=使…落下=事情发生) decaent颓废的accidental偶然的(accident事故+al) coincide巧合,同时发生coincidence巧合incident偶然事件occident西方(oc使+cid落+ent=使(太阳) 落下=西方) decay衰退,腐败(de向下+cay=落下=向下掉=衰退) |
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