词汇 | acuity |
词根词缀 | 词源: 1540s, from M.Fr. acuité, from M.L. acuitatem (nom. acuitas) "sharpness," from L. acus "needle," acuere "to sharpen," from PIE base *ak- "rise to a point, be sharp" (see acrid). 词根记忆: 尖锐,敏锐(acu+ity性质→尖的性质→尖锐)[acid,acri,acrid,acu=sour,sharp,表示"尖,酸,锐利"] 词根词缀: acuity acuity尖锐,敏锐(acu+ity性质=尖的性质=尖锐) acid, acri, acrid, acu=sour, sharp, 表示”尖,酸,锐利”acid酸的acidify酸化(acid+ify…化=酸化) acidity酸度,酸性(acid+ity性质=酸性) acidulous微酸的(acid+ulous有…的=有酸味的) acrid辛辣的,类刻的(acrimony的形容词) acute尖锐的,敏锐的acuity尖锐,敏锐(acu+ity性质=尖的性质=尖锐) acumen敏锐,聪明(acu+men表示名词=尖=敏锐) acupuncture针炙(acu尖+punct点+ure=用尖(针) 点=针炙) acme顶点,顶峰(acumen的变体) |
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