| 正面 | 13134.calculus 英 ['kælkjʊləs]美 ['kælkjələs]     |
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| 背面 |      释义： 1、com- "together" + puls- + -ory.2、字面含义：drive together, drive to one place (of cattle).3、其原始字面含义为：迫使或将其驱赶到一起；后来含义由此引申和一般化，表示广义的、一般意义的强迫、迫使。n. [病理] 结石；微积分学 例句： 1. I'm specializing in differential and integral calculus.我正专攻微分学和积分学. calculus 微积分来自词根calc, 小石子。指古时用小石子计数，现指数学术语微积分。 calculus (n.)1660s, from Latin calculus "reckoning, account," originally "pebble used as a reckoning counter," diminutive of calx (genitive calcis) "limestone" (see chalk (n.)). Modern mathematical sense is a shortening of differential calculus. Also used from 1732 to mean kidney stones, etc., then generally for "concretion occurring accidentally in the animal body," such as dental plaque. Related: Calculous (adj.)." |