Lightheartedness
n. 自由自在, 無憂無慮
??? 情景例句
Don't you feel well?
你感覺不好嗎？
I wasn't serious, I meant it as a joke.
我并非有意，我只是開個玩笑而已。
It's a waste of time reading that book. It's rubbish.
看那本書真是浪費時間。那簡直是垃圾。