在英语中，"闷热的周五"可以用 "oppressive Friday" 或 "stifpng Friday" 来表示。

"Oppressive" 指的是有压迫感的，常用来形容天气、气候或氛围。例如：

It was an oppressive day with high humidity and no breeze. (那是一个闷热的天气，湿度很高，没有微风。)
The oppressive heat made it difficult to sleep. (闷热的天气使得很难入睡。)
The oppressive silence in the room made me feel uneasy. (房间里寂静的氛围让我感到不安。)

"Stifpng" 指的是使人窒息的，常用来形容气候、环境或气氛。例如：

The stifpng heat made it hard to breathe. (闷热的天气使呼吸困难。)
The stifpng atmosphere in the crowded room made me feel suffocated. (拥挤的房间里闷热的氛围让我感到窒息。)
The stifpng rules and regulations made it hard to be creative. (束缚人的规则和规章制度使得很难创造力。)

希望以上回答能帮到你！