If you look at the audit example presented earlier, you will notice that two checks of this nature were carried out.

如果您查看前面提供的审计示例，就会注意到执行了两个这种性质的检查。

youdao

Each time the virtual cube is started, it checks the two cubes and performs the merge.

每次启动虚拟数据集时，它都检查两个数据集并执行合并。

youdao

Why are these two existential checks bad?

这两个存在检查为何不好？

youdao

So consumers who want to eat shrimp are faced with two choices: trust that random spot checks find any problems with seafood imports or pay more for domestic, wild harvested shrimp.

VOA: standard.2010.05.27

We're going to call binary search, it's going to take the list to search and the element, but it's also going to say, here's the first part of the list, and there's the last part of the list, Well, it checks to see, is it bigger than two?

我们将要调用这个二分查找,它将会在列表里面搜索元素，假定这里是，列表的第一个元素,那里是列表的最后一个元素，代码内部到底做了什么？

麻省理工公开课 - 计算机科学及编程导论课程节选

But they're much more lax on things like driving history and credit checks, two issues known as potential red flags.

FORBES: Holiday Thieving Season

There are two checks on current commodity values that make sustained speculative bubbles much less likely.

FORBES: Are Speculators Responsible for Today's Higher Oil Prices?

Then there's double-dipping, or legislators collecting two checks from government (which other government employees are barred from doing).

WSJ: State Politicians and the Public Pension Cookie Jar