Until recently, most of the research was conducted, was done using questionnaires.

直至最近，多数完成的研究，使用的都是问卷方式。

哈佛公开课 - 幸福课课程节选

Raul, there was recently a study done about cell phone use by a driver when people are driving a car, and there was a debate whether that should be banned.

劳尔，最近有一项,关于司机开车时使用手机的研究，关于是否应该禁止此行为，有一场争论。

耶鲁公开课 - 公正课程节选

Let me disclaim, too, we're by no means perfect so the Harvard courses APP that a lot of you used on the web to shop for courses, we recently sent out a form to get feedback from everyone because we don't doubt that it was imperfect the first time around, but we're going to iterate and make amends with that.

我不是说，我不是说要完美,你们大部分使用哈佛大学课程APP来在网上选课,我们最近给你们发了一个表单，从你们那里,得到反馈，因为我不怀疑,第一次时它是有瑕疵的,但是我们将反复地道歉。

哈佛公开课 - 计算机科学课程节选