happiest
adj. 幸福的;快乐的
例句
When I'm on the soccer field, I'm at my happiest.
当我在足球场上时,我最开心了。
《柯林斯英汉双解大词典》
Those were the happiest days of my life.
那是我一生中最幸福的一段时光。
《牛津词典》
I must be the happiest person on earth !
我一定是世界上最幸福的人!