sum

复数：sums过去式：summed过去分词：summed现在分词：summing第三人称单数：sums

1. [S] 总数,总和total
2. [C] 金额 amount of money
3. [P] 算术 problem in arithmetic

1. vt. 合计 give the total of
2. vt. & vi. 总结; 归纳 express briefly the chief points of what has been said

• sum a column of figures算出一串数字的总和
• sum the cost of the machine计算机器的成本

• sum up是…的总和,总数; 总结,概括; 对…迅速作出判断或鉴定
• sum up one's assets计算某人的资产
• sum up sb's character in a term用一个词概括某人的性格
• sum up one's experience总结某人的经验

• sum into总数达到
• sum to共计

sum up总结；概述；计算…的总数

in sum总而言之；大体上

sum of money款项

a large sum of一大笔；大量的

sum total总数；总计；主旨

lump sum总额；汇总

dim sum（汉）点心

total sum总数，总金额

weighted sum加权和

zero sum零和的

sum insured保险金额；投保金额

direct sum[数]直和

zero sum game零和竞赛，零和博弈；零和对策

sum of squares平方和；统计表

the sum and substance要旨

vector sum向量和；矢量和

sum rule求和规则

check sum校验和

lump sum payment整笔付款；一次总算，一次总付

lump sum price混合价格；总括价格；整笔计价格

1. I had to spend a large sum of money to get it back.
   我得花一大笔钱才把它弄回来。
2. I save a nice little sum out of my wages each week.
   我从每周的工资中节省一笔可观的金额。
3. The sum of 5 and 3 is 8.
   五加三的总和是八。
4. Is that the sum of what you've done in the last two years?
   这就是你最近两年中完成的全部数量吗？
5. What I just said is the sum of the book.
   我刚才所说的是这本书的要点。

1. We can sum up the main point of the lesson in three sentences.
   我们可以用三句话来概括本课要点。
2. So, to sum up, we need to concentrate on staff training.
   概括地说，我们需要集中精力进行职工培训。
3. The last section sums up all the arguments on either side.
   最后一部分总结了双方的全部论点。
4. Please sum up what you said just now.
   请把你刚才说的总结一下。
5. Now, I sum them up in 3 main points.
   下面，我将其归纳为三点。
6. These instances sum up to several dozen.
   这些例子总计达数十个。