基本解释adj.惋惜的;遺憾的;後悔的同根派生 regretfulness相关词英汉例句用作形容詞 (adj.)I am regretful for what I have done.我對我的所爲深感遺憾。I am regretful for hurting her feelings.我後悔傷害了她的感情。I am never regretful to choose the major by now.我至今仍不後悔我選擇這個專業。regretfulness更多例句