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单词 sum
释义 sumsum[sʌm]n.1.总数[计, 额];【数】和2.[the sum]概略, 要点3.金额, 款项4.算术(题), 运算5.[诗]绝顶, 顶点, 极点the sum of this book这本书的要点a good sum可观的金额be good at sums长于算术The sum of 5 and 4 is 9.五加四的和是九。He paid a large sum for the house.他出一笔巨款买了这所房子。
词性变化sumvt.1.总计, 合计2.概略, 概述sum (up) the costs of sth.计算某物的总成本费sum sb. up看清某人的性格sumvi.1.总计(into, to), 概括要点 (up)

继承用法sum-up[ˈsʌmʌp]n.1.总结sumless[ˈsʌmlɪs]adj.1.无数的, 无限的, 不可估量的

习惯用语a tidy sum1.相当巨大的款项do [work, make] sums [a sum]1.计算, 做算术题in sum1.大体上, 一言以蔽之, 总之the sum (and substance) of...1.要点, 要义, 精义the sum of things1.(最高的)公共利益; 宇宙sum total1.总数, 总计sum up1.总计; 概括; 总结; 判断; 估量

特殊用法alternating sum1.交错和approximate sum1.概算额binary sum1.模2和capital sum1.本金cardinal sum1.基数和character sums1.特征(标)和column sum of a matrix1.矩阵的列和control sum1.检核和deposited sum1.存入银行的金额, 存款discrete direct sum1.离散直和exponential sum1.指数和, 三角和external[internal] direct sum1.外[内]直和grand sum1.总和gross sum1.总额guarantee sum1.保证金额initial lump sum1.初付费lattice sums1.格子和log-exponential sum1.对数-指数和lump sum1.整数金额, 总结算, 总额magic sum1.幻和multiple sum1.多重和ordered sum1.有序和ordinal sum1.序数和orthogonal parity check sum1.正交均等核对和penal sum1.违约罚金principal sum1.本金principal sum of the bill of exchange1.汇票所载的金额quasi-directsum1.拟直和recognized sum1.识别总数round sum1.可观的一笔款, 巨款row sum of a matrix1.矩阵的行和semidirect sum1.半直和tender sum1.包价, 发包价格tensor sum1.张量和topological (direct) sum1.拓扑(直)和total sum1.总金额weight sum1.加权和weighted residual sum1.加权剩余和sum of credits [debits]1.贷[借]方总额sum of infinite series1.【数】无穷级数的和sum of products1.乘积(之)和, 积和sum of ranks1.秩次和sum of series1.级数的和[值]sum of squares of deviations1.离差平方和sum of states1.【统】状态和
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