In his time, Whitman thought of it as a work in progress.

VOA: special.2009.04.12

What's shown in this diagram is the progress of the developing embryo as it travels in time, down the fallopian tube.

这张图上显示的,就是胚胎发育的过程,是按照它在输卵管中移动的时间排序的

耶鲁公开课 - 生物医学工程探索课程节选

Well,De Gaulle has been dead for a very long time, and there has been progress, but what has not changed is still the power in Paris, in these ministries, to dictate the life of schools, of almost everything else.

戴高乐已经去世很久,在某些地方已经有所改进,但是巴黎的权利,政府各部门的权利仍未改变,他们规定校园生活,还有几乎其他任何事情

耶鲁公开课 - 1871年后的法国课程节选

"When you really look deeper at what the AU is doing and what is happening at the regional economic community level, though the progress has not been what we might have expected a number of years ago, it has changed, and it is a work in progress, and next year this time we might be talking about the next summit within a very different context if we are looking at the political leadership of the day,".

VOA: standard.2009.07.02