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