本文主要研究了能量回馈系统。

Energy feedback system was researched in this paper.

youdao

我们的现金回馈（产品搜索）系统也是如此。

That's what you see us doing with things like our cash-back [product search] system.

youdao

我们的现金回馈（产品搜索）系统也是如此。

That's what you see us doing with things like our cash-back [product search] system.

youdao