meaning是可数吗

　　I hadn't a clue as to the meaning of "activism."

　　我对的意思一无所知。

　　The literal meaning of 'petrify' is 'turn to stone'.

　　petrify的字面意思是turnto stone（变成石头）。

　　'Honesty'? He doesn't know the meaning of the word !

　　“诚实”？他不明白这个词是什么意思！