A suspect might also leave behind hairs or some kind of body fluid such as blood.

VOA: special.2010.05.05

They start as what are called vesicular lesions, or like blisters, where they're filled with a fluid.

这往往以出水痘开始,或者起水疱,里面充满液体

耶鲁公开课 - 生物医学工程探索课程节选

You get glob if you mix it you get globlets of oil, or globlets of triglycerides, they're floating around in the fluid if you mix it.

你得到了一团东西,如果你把它们混合就会得到一堆小油脂团,或者说一堆甘油三酯团,如果你搅动它的话,油脂会浮在水上

耶鲁公开课 - 生物医学工程探索课程节选