Sixthly, To practice arbitrage on the basis of four boundary, we establish and close out positions by using simulated data, then compare the final return to simple arbitrage strategy's.

第六部分在模拟出来的数据的基础上根据四条边界进行套利交易，并将最终获取的收益与简单套利策略得到的收益进行比较。

youdao

This makes it extremely simple to save what you find with an electronic bookmark so you can return to it later.

用一个电子书签保存找到的内容使以后再次访问变得非常简单。

《柯林斯英汉双解大词典》

The following simple strategies will help you return to exercise safely after a break.

下面这些简单的策略能帮助你在中断之后安全地恢复锻炼。

youdao

If it isn't, then I'm going to go back around the loop, and notice what happens. If I get all the way around the loop, that is, all the way through that FOR loop and I never find a path that takes me through here, then the last thing I'm going to do is return a pair or a tuple with a special simple number none twice.

如果没有,我会回到循环看看发生了什么,如果我运行了整个循环,也就是整个for循环,我仍没有找到符合条件的路径,那么我最后做的事情就是返回一对,或者一个数组的两次none值。

麻省理工公开课 - 计算机科学及编程导论课程节选

Frankly, I think Washington is broken and it's going to take a return to bipartisanship and simple respect for each other's views to get it fixed.

FORBES: Bill Richardson

But you'll need to have a relatively simple return to be eligible.

WSJ: Tax Preparation for the Novice

In the old days taxpayers would often attach to their return a simple, bare-bones letter from an accountant stating the gift's value.

FORBES: Play Ball