| 单词 | the sum of | 
| 释义 | the sum ofidiom1   : an amount of (money)  I paid the sum of $500. 2   : the result of (adding two or more numbers together)  The sum of 5 and 7 is 12 3   : all there is of : the whole amount of  Working odd summer jobs has been the sum of my experience so far. | 
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