the Yellow Pages
noun [ S ] trademark uk/ˌjel.əʊ ˈpeɪ.dʒɪz/ us/ˌjel.oʊ ˈpeɪ.dʒɪz/
黄页（分类商业电话号码簿）
a brand name for a large, yellow book that contains the addresses and phone numbers of businesses and people offering services, listing them in groups according to what type of business they are
Compare: the White Pages