As we know that low risk means low return.

正所谓,低风险低收益嘛.

After completing my analysis, I successfully recommended that the project not be pursued because of an unacceptably low return.

在完成了我的分析之后，我成功地建议公司不要继续这个项目，因为它的回报率低得让人难以接受。

The Times notes that borrowed money has been used to finance not only real estate construction, but also low-return infrastructure projects like bridges, tunnels, subways, and roads.

《时代》特别提到，这些借来的钱不仅仅用来做为房地产建设的资金，而且也用于像桥梁、隧道、地铁和公路等低回报的基础建设项目。