These values, which we can also call politeness levels, specify what a screen reader should do when the element value is updated.

我们也可以将这些值称作“礼貌级别”，它们指定了当元素值更新时屏幕阅读器的响应操作。

youdao

As shown in Figure 4, you get a blank screen, a horizontal rule, and a return value of 1.

您得到的是一个空白的屏幕，一条水平线和返回值1，如图4所示。

youdao

Of mixed value was the ability (and requirement) to choose screen resolution and a few other configuration options.

选择屏幕分辩率和一些其他配置选项的能力（也是 要求）难言其利弊。

youdao

I don't have to go read what it printed out in the screen. This has returned a value that I can use. Because I could do a test to say, is this a return value? If it's not, I'll do something else with it. So the binding is still there, it simply doesn't print it out.

我不想读到屏幕中打印出来的这行字,程序返回过一个我能够使用的值,因为我可以做个小测试，来说明这是否是返回的值，如果不是，我可以做一些其它的事,而这个绑定依然在这儿，没有打印任何东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

So input is an int called F, print out to the screen or your piece of paper the value of C. Odds are you only need two, maybe three lines of code for this, but the goal ultimately will be try it on your own.

所以输入是一个int类型的F，在你的屏幕上,或你们的纸上打印出C的数值,可能你们需要两行或者三行的代码,但是最终的目标需要你自己独自尝试。

哈佛公开课 - 计算机科学课程节选

Some psychological basics can help one audit the multi-screen value of what so many are now doing.

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To help separate the promising candidates from the legitimate losers, Gerstein applies a value screen to this universe and finds companies with decent fundamentals that look to be on the upswing.

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For example, they might try to create a quant screen that looks for value stocks.

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