careful比較級和最進階是:
more careful，the most careful。
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。
Be careful to avoid being subjective and one-sided .切忌主觀片面。
careful比較級和最進階是什麼
careful的比較級是：more careful，最進階是：the most careful。其意思是小心注意謹慎細緻的精心的慎重的。careful用作表語時，其後也可跟動詞不定式、that從句。
如：We all think he is one of the most careful students in his class。我們都認爲他是班裏最細心的學生之一。
