This is a change in the electrical resistance of the skin which can be caused by various stimuli, like anger or elation.
通过不同的刺激，如生气或高兴，引起的皮肤对电阻反应的改变。
2
Skin: Surface covering of the Body that protects it and receives external sensory stimuli, consisting of an epidermis over a thicker dermis.
皮肤：身体表面的覆盖体，保护身体并接收外界感官刺激，由表皮和后的真皮层组成。
3
Famous for changing the color of their skin, chameleons are more like mood rings, with their color changes reflecting mood, temperature, light, and other stimuli.