| [/sʌm; sʌm/] n 用法:
1 [C often pl 常作复数] arithmetical calculation 算术:
do a sum in one's head 做心算 *
be good at sums 擅长算术. 用法:
2 [C] ~ (of sth) amount of money 金额; 款项:
He was fined the sum of 200. 他被处以200英镑罚金. *
Huge sums have been invested in this project. 在这个项目中投入了大量资金. 用法:
3 (a) [C usu sing 通常作单数] ~ (of sth) total obtained by adding together numbers, amounts or items 总数; 总和:
The sum of 5 and 3 is 8. 5加3的和是8.
(b) [sing] (also ,sum `total) the ~ of sth all of sth, esp when it is considered as not being enough 总共, 全部（尤含数量不足之意）:
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? 用法:
4 (idm 习语) in `sum (dated 旧) in a few words 简言之; 总而言之:
In sum, the plan failed. 总之, 计画告吹了. sum 2
v (-mm-) (phr v) sum (sth) up (a) give a brief summary (of sth) 总结, 概括（某事物）:
Now sum up (your views) in a few words. 现在（把你的观点）用几句话来概括一下.
(b) (of a judge) summarize the evidence or arguments in a legal case （指法官）归纳证词或双方论点. sum sb/sth up form an opinion of sb/sth 形成对某人[某事物]的看法:
I summed her up as a competent manager. 我认为她是个很能干的经理. *
He summed up the situation at a glance, ie realized at once what was happening. 他一眼就看清了当时的情况. ,summing-`up n (pl summings-up) speech in which a judge sums up the evidence or arguments in a legal case （讼案中法官对证词或辩论情况做的）概述. |