根本上来说，这个理由只是部分基于优秀的小额付款服务系统的缺失。

That was originally driven partly by the absence of good micropayment systems.

youdao

根本上来说，这个理由只是部分基于优秀的小额付款服务系统的缺失。

That was originally driven partly by the absence of good micropayment systems.

youdao