happiness是可數(shù)還是不可數(shù)

　　She found happiness in her later years.

　　她在晚年才尋得幸福。

　　'Happiness' is a derivative of 'happy'.

　　happiness是happy的派生詞。

　　You have destroyed my hopes of happiness.

　　你毀掉了我得到幸福的希望。