it becomes a gray area but it should be pretty clear if you can treat something is reversible are irreversible.

这是个灰色区域,但什么可以当作可逆过程处理,而什么要当作不可逆过程,这是相当清楚的。

麻省理工公开课 - 热力学与动力学课程节选

It's that backdrop--it's that sense of bureaucratized existence-- that defamiliarization has, to a certain extent, the ideological purpose of dispelling and undermining.

而这种灰色的机械的背景-,在一定程度上被文学带来的陌生化，冲淡了，减弱了。

耶鲁公开课 - 文学理论导论课程节选

Some of the segments dissolve in water, the gray segments here, and the lightly colored segments don't dissolve in water, they dissolve in fat.

有些片段可以溶于水中,像这里的灰色片段,而浅色的片段不溶于水,它们溶于脂肪中

耶鲁公开课 - 生物医学工程探索课程节选