直接的竞争可能会强烈刺激它们降低价格，也许是通过接受更低的利润率或者要求供应商提供更好的交易条件。

The head-to-head competition might give them a strong incentive to lower their prices, perhaps by accepting slimmer profit margins or demanding better deals from providers.

youdao

我本可以直接在我的织物上画一个梯形，但是我做了一个纸样来更好地说明如何画出正确的形状。

I could have just drawn a trapezoid directly on my fabric, but I made a paper pattern to better illustrate how to draft the correct shape.

youdao

但是这里与世界其它地方一样，日益上升的收入水平并不总能直接转化为更好的卫生结果。

But here, as elsewhere in the world, rising income levels do not always translate directly into better outcomes for health.

youdao

If I decide there's a better way to get input, and there is, then I can make it to change what I don't have to change the code that uses the input.

如果我觉得有更好的获取输入的方法，我可以直接改去用这种方式,而不用更改使用了,输入处的代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I would suggest palindrome as a great example of that. That's easy to think about recursively. It's much harder to think about iteratively. And you want to get into the habit of deciding which is the right one for you to use. And with that, we'll see you next time.

其它的问题可能用递归的方式,可以更好的解决,而直接思考可能很困难,这时你就得养成做出,正确选择的好习惯了,下周再见。

麻省理工公开课 - 计算机科学及编程导论课程节选