我做了大量研究发现，他也是一个遭遇很多生活不幸的人。

I did enough to know that there was a lot of unhappiness in his life.

youdao

我兴奋地做了大量研究并跟我的岳父——一位经验丰富的商人谈论这件事。

Excited, I did a lot of research and was talking about it to my father-in-law, an experienced businessman.

youdao

在历代各个阶段，众多学者对此做了大量研究，做出了重大贡献。

In every stages, many scholars make a lot of researches and make important contribute.

youdao

It's because over the last two years since I last taught it, I've done a lot work in the area of silence.

因为上次课程结束后到现在的两年，我做了大量关于安静的研究。

哈佛公开课 - 幸福课课程节选

And they actually did a really large study on children who were raised in gay or lesbian families,

他们确实对同性恋家庭里长大的孩子做了大量研究，

给我结婚的自由 - SpeakingMax英语口语达人

Roger Ibbotson, who is a colleague of Bob Shiller's and mine at the School of Management, has done a fair amount of work, studying the relative importance of these sources of returns.

罗格·伊博森是,我和希勒在管理学院的同事,他在对回报率来源的研究上,做了大量的工作

耶鲁公开课 - 金融市场课程节选