- When you determine the sum, you add up all the numbers. When you sum something up, you focus on all of its important points.
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- n. 金额；总数
- vi. 概括
- vt. 总结；合计
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1. He's put aside a tidy sum for his retirement.
他存了一笔相当可观的钱以备退休之用。
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2. When you add all the figures together,the sum is 125.
你把这些数字都加起来，总数就是125。
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3. He is saving a sum of money to buy a home for his family.
他正积蓄一笔钱以便买一幢住宅供全家居住。
sum ★ AWL / sʌm ; NAmE sʌm / noun , verb sum sums summed summing noun ★ 1 ★ [countable ] sum(of sth) an amount of money 金额；款项 ◆ You will be fined the sum of £200. 你将被罚款 200 英镑。 ◆ a large sum of money 一大笔钱 ◆ a six-figure sum 一笔六位数的款项 ☞see also lump sum 2 ★ [countable , usually singular ] sum(of sth) the number you get when you add two or more numbers together 和；总和；总数 ◆ The sum of 7 and 12 is 19. *7 加 12 的和是 19。 3 ( also ˌsum ˈtotal ) [singular ] the sumof sth all of sth, especially when you think that it is not very much 全部，一切（尤指数量不大） ◆ This is the sum of my achievements so far. 这就是我目前的全部成就。 4 [countable ] a simple problem that involves calculating numbers 算术；（数字的）简单计算 ◆ to do a sumin your head 做心算 ◆ I was good at sums at school. 我当学生时擅长算术。 ◆ If I've got my sums right, I should be able to afford the rent. 要是我算对了的话，我应该负担得起这笔租金。 IDIOMS be greater/more than the ˌsum of its ˈparts to be better or more effective as a group than you would think just by looking at the individual members of the group 个体相加不如集体的力量大 in ˈsum ( formal) used to introduce a short statement of the main points of a discussion, speech, etc. 总之；总而言之 verb ★ ( -mm- ) PHRASAL VERBS ˌsum ˈup | ˌsum sth↔ˈup 1 ★ to state the main points of sth in a short and clear form 总结；概括 SYN summarize ◆ To sum up,there are three main ways of tackling the problem… 概括起来说，这一问题主要有三种解决办法… sumwhat… ◆ Can I just sum up what we've agreed so far? 我可否就我们目前已经达成的共识作个概括？ ☞language bank at conclusion 2 (of a judge 法官 ) to give a summary of the main facts and arguments in a legal case, near the end of a trial （审理结束前）作概述 ☞related noun summing-up ˌsum sb/sth↔ˈup 1 to describe or show the most typical characteristics of sb/sth, especially in a few words 简而言之 ◆ Totally lazy—that just about sums him up. 懒到家了，这大体上就是他的真实写照。 2 to form or express an opinion of sb/sth 估量，判断（某人或事物） SYN size up ◆ She quickly summed up the situation and took control. 她很快就看出是怎么回事，并控制住局面。 ☞related noun summing-up sum / sʌm ; NAmE sʌm /
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