sum

sum
noun
  1. a particular amount of money
    金额，款项，款子
    they could not afford such a sum.
    他们付不起这样一笔款子。
  2. (the sum of)the total amount resulting from the addition of two or more numbers, amounts, or items
    和，总数
    the sum of two prime numbers.
    两个素数之和。
    ■the total amount of something that exists
    总和
    the sum of his own knowledge.
    他个人知识的总和。
  3. an arithmetical problem, especially at an elementary level
    算术题
(summed, summing)
  1. (technical)find the sum of (two or more amounts)
    (技)求…的和，计算…的总数
    if we sum these equations we obtain X.
    如果我们把这些方程式相加，就能求得X 。
    ■[no obj. sum to](of two or more amounts) add up to a specified total
    共计，总数达
    these additional probabilities must sum to 1.
    这些额外的概率相加必然是1。
常用词组
in sum
  1. to sum up
    简言之；总而言之
    this interpretation does little, in sum, to add to our understanding.
    总而言之，这个解释没有增进我们的理解。
语源
  1. Middle English: via Old French from Latin summa 'main part, sum total', feminine of summus 'highest'
继承用法
sum up
  1. give a brief summary of something
    总结，概括
    Gerard will open the debate and I will sum up.
    杰勒德将在辩论开始时发言，而我将做总结。
    ■(Law)(of a judge) review the evidence at the end of a case and direct the jury regarding points of law
    (律)（法官的）总结性概述（指法官在案件结束时对证据进行回顾，并在相关法律点上引导陪审团）
  2. (sum someone/thing up)express a concise idea of the nature or character of a person or thing
    对某人/某事作出简要概括
    selfish—that summed her up.
    自私——这个词就可以将她概括了。
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