abstract关键字使得使用接口十分容易，我稍后将加以说明。
The abstract keyword makes using interfaces a lot easier, as I show later.
使用关键字“图像”或“图片”在照片的alt描述和标题说明里。
Use the words "image" or "picture" in your photo ALT descriptions and captions. A lot of searches are for a keyword plus one of those words.
快速浏览您的计算机的文件夹，或使用关键字搜索您的文件，说明和文件的内容。
Quickly browse the folders of your computer, or search your files using keywords, descriptions and file content.
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