You owe a certain person a sum of money.

你欠着某人一笔钱。

《柯林斯英汉双解大词典》

To date, the sum of my gardening experience had been futile efforts to rid the flower beds of grass.

迄今为止，我全部的园艺经验就是给花圃徒劳地除草。

《柯林斯英汉双解大词典》

He did her out of a sum of money.

他骗了她一笔钱。

youdao

Every president is the sum of his past experiences.

VOA: standard.2010.01.16

So, the total work that we can get out must be zero, out of the whole sum of them.

因此，我们可以从这两个热机,得到的总功，一定是零。

麻省理工公开课 - 热力学与动力学课程节选

It's just minus the sum of all these things, because of course these are just defined as the work done by the environment to the system.

等于负的这些东西的和，因为它们的定义是,环境对系统所做的功。

麻省理工公开课 - 热力学与动力学课程节选

The sum of it was a too distant cousin of the German biergarten ideal I sought.

BBC: The wiedergeburt (rebirth) of New York��s biergartens

In simple terms, economic value-added is almost entirely defined by the sum of wages and profits.

FORBES: Investment and Technological Progress

But even that vast sum of taxpayer lucre cannot will the necessary innovations into being.

FORBES: Government Mandates Make Health Savings More Elusive