[countable] an amount of money金额；款项◆a large sum of money一大笔钱◆They paid a nominal sum of 1 cent per share.他们每股象征性地支付了 1 分钱。◆policies for savers with small sums to invest针对小额投资储户的政策◆He was paid a six-figure sum (= over 100 000 dollars, euros, etc.) for joining the company.他因加入公司而得到六位数的收入。⨁a considerable / large / significant / substantial sum一大笔钱 ⨁ an enormous / a huge / vast sum一笔巨款 ⨁ a modest / nominal / small sum一笔不多的／象征性的／小额的钱 [countable, usually singular] the number you get when you add two or more numbers together和；总和◆The sum of exports and imports rose by 5% in the first half of this year.今年上半年进出口总额上升了 5%。⨁to calculate / find / work out the sum (of sth)计算／算出（某物的）总和 [countable] a simple problem that involves calculating numbers算术；简单运算◆I did a few sums in my head and decided it was a good price.我在脑子里简单算了一下就确定那是个好价钱。◆If we've got our sums right, we should be profitable within six months.如果我们的计算没错的话，我们在六个月内就会盈利。 (also ˌsum ˈtotal) [singular] all of sth全部；一切◆ The sum of all these small changes has had a huge effect on the industry.所有这些微小的变化加在一起对这个产业产生了巨大的影响。 ●be greater/more than the ˌsum of its ˈpartsto be better or more effective as a group than you would think just by looking at the individual members of the group个体相加不如集体力量大●in ˈsumused to introduce a short statement of the main points of a discussion or speech总之；总而言之 capital sum lump sum