C — circulation: Is there a pulse? Is the person bleeding externally? Check skin color and temperature additional indications of circulation problems.

循环：是否有脉搏？从表面看是否有出血现象？检查皮肤的颜色和体温，加上血液循环问题的迹象。

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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.

变色龙以他们善变的皮肤出名，他们能根据自身的情绪、环境温度、光线和其他刺激因素来改变他们的肤色。

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