careful是多音節嗎

careful是雙音節詞。

He was always careful to toe the party line .他一直很服從黨的命令。

Be particularly careful when driving at night .晚上開車要特別小心。

She buys many things by careful spending .她用很少的錢能買很多東西。

We must make a careful study of the matter ...這個問題很值得考究。