| 单词 | sum |
| 释义 | sum —sumless, adj. —sumlessness, n. /sum/, n. , v. , summed, summing. n. 1. the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition: The sum of 6 and 8 is 14. 2. a particular aggregate or total, esp. with reference to money: The expenses came to an enormous sum. 3. an indefinite amount or quantity, esp. of money: to lend small sums. 4. a series of numbers or quantities to be added up. 5. an arithmetical problem to be solved, or such a problem worked out and having the various steps shown. 6. the full amount, or the whole. 7. the substance or gist of a matter, comprehensively or broadly viewed or expressed: the sum of his opinions. 8. concise or brief form: in sum. 9. Math. a. the limit of the sequence of partial sums of a given infinite series. b. union (def. 10a). 10. a summary. v.t. 11. to combine into an aggregate or total (often fol. by up). 12. to ascertain the sum of, as by addition. 13. to bring into or contain in a small compass (often fol. by up). v.i. 14. to amount (usually fol. by to or into): Their expenses summed into the thousands. 15. sum up, a. to reckon: We summed up our assets and liabilities. b. to bring into or contain in a brief and comprehensive statement; summarize: to sum up the case for the prosecution. c. to form a quick estimate of: I summed him up in a minute. [1250-1300; (n.) ME summe < L summa sum, n. use of fem. of summus highest, superl. of superus (see SUPERIOR); (v.) ME summen ( < OF summer) < ML summare, deriv. of summa] Syn. 1. See number. |
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