“全世界都会对你微笑”，阿姆斯特朗浅唱低吟着；在光秃秃的白色背景下，苹果商标出现在屏幕上，然后慢慢消隐。
“The whole world smiles with you, ” Armstrong croons; the Apple logo, over a stark white background, appears on the screen, then slowly fades away.
背景灰度相比其他阅读器浅了几个层次，让黑色文本在背景上有着更高的对比度。
The background gray is a few shades lighter than on any other reader, producing much better contrast behind the black text.
本书对于读者的技术背景要求较深，但如果您能掌握书中的内容，相信会使您受益匪浅。
This book requires technical depth from its readers, but it will provide valuable dividends if you take the time to learn the wisdom it contains.
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