ear lobe

• In freezing weather , the exposed parts of the body such as the nose tip , ear lobes , cheeks and chin - may develop frostbites as the skin on them cools and the blood vessels become constricted thus cutting off the blood supply to the area
  冻疮在寒冷的天气中，暴露于空气中的身体部分，如鼻尖、耳垂、面颊及颏部会由于皮肤受寒，血管收缩，血液停止供应该范围而出现冻疮。