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

　　我對的意思一無所知。

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

　　petrify的字面意思是turnto stone（變成石頭）。

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

　　“誠實(shí)”？他不明白這個詞是什么意思！