One of the hands keeps a flat hand shape and it just kind of lightly moves back and forth as if it were a flickering image on a screen."

VOA: special.2011.04.13

One of these classrooms in this building in another classrooms again is flat classrooms with thirteen tables and a lot of nice space between them.

这栋楼里的一间教室,是另外一种教室,有13张桌子的扁平型教室,之间还有足够的空间。

麻省理工公开课 - 媒体、教育、市场课程节选

This is--If you'll hold out your hand and--one hand flat.

如果你伸出手,手伸平

耶鲁公开课 - 心理学导论课程节选

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