The term was originally used by rec

The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when "urbane, rocking, jazz based music with a heavy, insistent beat" was becoming more popular.

結果 (中文) 1:

唱片公司是最初用这个词，来描述录音主要面向城市的非洲裔美国人，一次当"文雅、 摇滚、 爵士基于的音乐与一重、 坚持拍"变得越来越流行。

結果 (中文) 3:

这个词最初是用来描述由唱片公司的唱片销售的主要城市非裔美国人，当时“温文尔雅，摇摆，爵士音乐与重，坚持打“正变得越来越流行。