上周我们针对……做了一项调查。

We did a survey about... last week.

youdao

上周，我做了一项调查。

Last week, I did a survey.

youdao

我们针对这项商品做了一项市场调查。

We've done market research on the merchandise.

youdao

近期我做了一项关于……的调查。

I have recently made/done a survey about/of…

youdao

近期我做了一项关于……的调查。

I have recently made/done a survey about/of…

youdao