This is your acquisition cost from a paid online advertising channel.

这个指的是某个付费在线广告频道的取得成本。

According to the prospectus, its acquisition cost per new customer decreased to 16.9 yuan ($2.52) in the first quarter of 2019 from 103.5 yuan in the year-ago quarter, helped by the growth of its network and improved brand recognition.

瑞幸咖啡的招股说明书显示，得益于其销售网络的发展和品牌认知度的提高，2019 年第一季度，该公司获得每名新客户的成本从去年同期的 103。5 元降至 16。9 元（2。52 美元）。