使用CSS缩写不仅能够削减代码编写时间，也可以减小演示表文件的尺寸，最终确保页面加载速度。
Not only does using shorthand CSS reduce code-writing, but it also lowers the file sizes of your stylesheets, which ultimately meansfaster page response times.
tar实用程序将您的文件完整地记录到磁带中，tar是磁带存档程序(tape archiver)的首字母缩写。
The tar utility records your files verbatim on tape — tar is definitely an acronym for tape archiver.
tar是tape archive(磁带归档)的缩写，最初设计用于将文件打包到磁带上。
Tar is short for tape archive, and was originally designed for packaging files onto tape.
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