The bill seemed to curl up as if it had been rolled and stuck into the end of a gun barrel.

VOA: special.2009.11.14

That's not to say he wasn't a brilliant thinker, but here the gift of a good minds and good hands, like the two parts of the MIT logo: two parts rolled into one.

这并不是说他不是一个很好的思考家，但是好的大脑，好的动手能力，就像MIT的标志一样：,两者相结合。

麻省理工公开课 - 固态化学导论课程节选

This tube, this hollow tube, which food passes through is made up of many, many epithelial cells which directly abut one another and would be a flat sheet except that it's rolled up into a tube.

这个管道,这个中空的管道,食物可以穿行其中,而它就是由许多许多上皮细胞构成的,上皮细胞一个连着一个,形成了一个平坦的细胞层,但实际上它们还在肠管中卷成管状

耶鲁公开课 - 生物医学工程探索课程节选