"sum" 这个词在英语中有多个意思,具体取决于上下文:
1. 总数:指加在一起的总数或总和。例如:"The sum of the numbers is 15."
2. 金额:通常指金钱的总额。例如:"The sum of money he owes is $100."
3. 总结:在写作或演讲中,指对某事物进行概括或总结。例如:"In sum, the project was a success."
4. 求和:数学术语,指将两个或多个数相加。例如:"Sum the numbers from 1 to 10."
5. 总结:在法律或合同中,指对条款或条件的概括。例如:"The sum of the contract includes all the terms and conditions."
根据不同的语境,"sum" 的含义会有所不同。