"寒熱"的英文翻譯可以根據具體語境選擇以下表達：

1. **Cold and Heat**（中醫術語，指寒熱癥狀或體質）
- 例句：In traditional Chinese medicine, "寒熱 (cold and heat)" refers to the balance of body temperature and energy.

2. **Chills and Fever**（醫學癥狀，指寒戰與發熱）
- 例句：The patient presented with chills and fever, indicating a possible infection.

3. **Thermal Sensation**（科學或環境領域，指冷熱感覺）
- 例句：The thermal sensation varies depending on humidity and wind speed.

根據使用場景選擇最合適的譯法即可。