Now, that is doable for us but that's not affordable in many parts of the world.

如今,这对我们来说不算难事,但是实际上,对于许多地区的人,这是无法负担的

耶鲁公开课 - 生物医学工程探索课程节选

because it's, otherwise not really doable.

因为，否则就过不去了。

和朋友一起逛洛杉矶 - SpeakingMax英语口语达人

Going forward I like to talk with you about health reforms Talk about two aspects of reform one what do you think are the most important reforms that we as a nation need Secondly what is politically and socially feasible doable, achievable?

接着说,我想跟你聊聊医疗改革,谈谈改革的两个方面,一方面，您认为,我们国家,最需要进行改革的是什么,其次，从政治方面,和社会方面而言,什么是可行的,可做的，可是实现的？

普林斯顿公开课 - 国际座谈会课程节选