sizzling/severe heat 酷热

scorching sun 烈日、骄阳

blistering summer day 炎炎夏日

torrid sun 灼热的太阳

sultry weather 湿热难耐的天气

heat up 升温

stiflingly hot 闷热

hot and humid 湿热

hot and dry 干热

hot spell 连续高温天气

heat stroke/sunstroke 中暑

heat wave 热浪

heat-related illnesses 高温病

heat-resistant 抗热的/耐热的

sauna days 桑拿天

be bathed/soaked with sweat 汗流浃背

heat alert 高温预警

beat the heat 消暑

escape the heat 避暑