US a measurement of how hot the air feels and how uncomfortable people are likely to be based on the

中文解释

酷热指数，炎热指数 With the sun beating down and a heat index of 105 degrees I was a sweaty, panting mess by the time I arrived. 骄阳似火，炎热指数高达105，我到达的时候已是汗流浃背，气喘吁吁。