n.[C]

1. 總數，總和，總計[the S][（+of）]
   She paid the sum of $200 for dresses.

   她買衣服總共花了二百元。

2. 【數】和[the S][（+of）]
3. 金額；一筆[（+of）]
   He earned a large sum of money.

   他賺了一大筆錢。

4. 概要；要點[the S][（+of）]
5. 算術題；運算
   The boy is good at doing a sum in his head.

   這男孩善於心算。

6. 頂點，極度[the S][（+of）]

vt.

1. 計算……的總和[（+up）]
2. 總結；概括；概述[（+up）]
   The story may be summed up in one sentence.

   該故事可以用一句話來概括。

vi.

1. 共計[（+to/into）]

n.

1. a particular amount of money.
2. (the sum of) the total amount resulting from the addition of two or more numbers or amounts.
   ▸the total amount of something that exists.
3. an arithmetical problem, especially at an elementary level.

v.

1. (sum someone/thing up) concisely describe the nature or character of someone or something.
   ▸ (sum up) summarize briefly.
2. (sum up) Law  (of a judge) review the evidence at the end of a case, and direct the jury regarding points of law.
3. technical find the sum of (two or more amounts).