求翻译：Each section is denoted by a certain color to differentiate sections beyond lettering and is seen in a box the top-left corner of the first page, with News being blue (section A), Money with green (section B), red for Sports (section C), and purple for Life (section D). Orange is used for bonus sections (section E or above), which are published occasionally such as for business travel trends and the Olympics; other bonus sections for sports (such as for the PGA Tour preview, NCAA Basketball Tournaments, Memorial Day auto races (Indianapolis 500 and Coca-Cola 600), NFL opening weekend and the Super Bowl) previously used the orange color, but now use the sports red in their bonus sections. On days featuring bonus sections or business holidays (when the four pages of stock tables are unneeded), the Money and Life sections are usually combined into one section, while combinations of the Friday Life editions into one section are common during quiet weeks.是什么意思？

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