Science can be hands-on, you might be down at the lake picking up algae and studying them or something, that would be hands-on.

科学研究也是要动手的,你可能会到湖底,收集水藻并研究它们,这就是动手操作

耶鲁公开课 - 生物医学工程探索课程节选

So I've been actually working some research in Berkley in aviation operations.

我在伯克利分校的时候就对航空操作做了一些研究。

来美国的理由 - SpeakingMax英语口语达人