"I was very unhappy yesterday" 是一种很常见的表达方式,意思是"昨天我非常不开心"。

这种表达方式的来源是英文的情绪词汇,其中"unhappy"是"不开心"的意思。

下面是一些英文例句,并附上中文翻译:

I was really unhappy yesterday because I had a lot of stress at work. (昨天我很不开心,因为工作压力很大。)
My dog passed away yesterday and I was extremely unhappy. (我的狗昨天去世了,我非常不开心。)
I had a fight with my best friend yesterday and it made me very unhappy. (昨天我和我最好的朋友吵了一架,这让我很不开心。)