用于开发测试的浏览器表明了开发者对各种平台的感兴趣程度。
The browsers used for development testing show the developers' interest in the respective platforms.
使用这些库的价值在于工程师可以在广泛的浏览器和平台上专注地维护和测试它们，这样可省去大量的工作和麻烦。
The value of using these libraries is that dedicated engineers maintain and test them on a wide variety of browsers and platforms, which can save you a lot of work and headache.
将网站放在不同的分辨率下、不同的电脑平台上以及不同的浏览器上进行测试，尽最大可能确保网站在各种条件下都能够正常显示。
View it in different screen resolutions, various computer platforms and different browsers. Take the time and effort to ensure that a Web site will look good no matter how it is viewed.
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