And scientists have been working on this for years and there's been progress, but it's still a very difficult challenge.

科学家们对此已经研究很久了,并取得了进展,但仍有很大挑战

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Indeed the major strides in prevention have largely come from a perspective focused " on systematically building competency,not correcting weakness."

事实上，在预防方面取得的重大进展,基本上来自一个观点,也就是注重培养能力，而非改正错误“

哈佛公开课 - 幸福课课程节选

PROFESSOR: So, does anyone have any questions about the set up here, does it make sense what we're looking for the bar to go back once we make some progress.

教授：所以，有人对这套装置,有疑问吗，一旦我们,取得了一些进展,我们看到这个棒又返回来。

麻省理工公开课 - 化学原理课程节选

Things like steel and polymers, or plastics, and ceramics, and of course computers which has progressed remarkably due to the work of engineers in your lifetime, until now you can carry around a cell phone, which would have been unthinkable even 30 years ago.

包括钢铁,聚合物,塑料,陶瓷,当然,计算机这个在你们的有生之年,已经取得令人瞩目的进展的发明,也得归功于工程师的工作,现在你们的手机能随身携带,而这在三十年前是不可想象的

耶鲁公开课 - 生物医学工程探索课程节选

And they had this feeling because there had just been this huge boon of discovery, of scientific advances that included Newtonian mechanics, it included Dalton's atomic theory of matter, also thermodynamics and classical electromagnetism.

他们会有这样的感觉,是因为他们刚，经历科学上的,大繁荣期，包括牛顿力学,道尔顿物质原子理论，热力学和电磁学,都取得了巨大进展。

麻省理工公开课 - 化学原理课程节选

And very little advances would have been made.

应该会取得一点点进展。

哈佛公开课 - 幸福课课程节选