| 正面 | 20092.plus 英 [plʌs]美 [plʌs]     |
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| 背面 |      释义： 1. sed- / sid- => sit.n. 正号，加号；好处；附加额adj. 正的；附加的prep. 加，加上n. (Plus)人名；(德)普卢斯 例句： 1. Three plus six makes nine.3加6等于9.(注意,此句中的plus是 介词,plussix是介词短语,作three的 定语,因此,动词用makes, 不用make ) . plus 多，加，优势，长处来自拉丁语plus,更多，更大，来自PIE*pele,装满，填满，词源同fill,full.用于数学名词加号，引申词义优势，长处。 plus (n.)1570s, the oral rendering of the arithmetical sign +, from Latin plus "more, in greater number, more often" (comparative of multus "much"), altered (by influence of minus) from *pleos, from PIE *pele- (1) "to fill" (see poly-). As a preposition, between two numbers to indicate addition, from 1660s. [Barnhart writes that this sense "did not exist in Latin and probably originated in commercial language of the Middle Ages."] Placed after a whole number to indicate "and a little more," it is attested from 1902. As a conjunction, "and," it is American English colloquial, attested from 1968. As a noun meaning "an advantage" from 1791. Plus fours (1921) were four inches longer in the leg than standard knickerbockers, to produce an overhang, originally a style associated with golfers. The plus sign itself has been well-known since at least late 15c. and is perhaps an abbreviation of Latin et (see et cetera)." |