cold sensitizer

例句：

1. 1. The cold sensitizer caused the skin to become red and itchy.
   这种冷刺激剂导致皮肤变红和痒。
2. 2.The researcher found that the cold sensitizer could trigger an allergic reaction.
   研究人员发现这种冷刺激剂可以引发过敏反应。
3. 3.The cold sensitizer was used as a tool to test the sensitivity of the human skin.
   这种冷刺激剂被用作测试人类皮肤敏感性的工具。