yellow pages 或 Yellow Pages

yellow-pages的词性：
pl.n.（复数名词）

1. A volume or section of a telephone directory that lists businesses, services, or products alphabetically according to field.
黄色电话薄：根据不同领域，按字母顺序列出商业、服务单位或产品的一卷或一部分的电话薄

yellow-pages的词源：

2. [So called because they are usually printed on yellow paper]
[之所以这样称呼，因为他们通常被印在黄色的纸上]