恬不知悔 be devoid of any sense of repentance -- to have no compunction
悔改 repent and mend one's ways 為時(shí)已晚的悔改 a death-bed repentance; 毫無悔改之意 have no intention of mending one's ways; show no sign of repentance; 決心悔改 be determined to mend one's ways; 悔改程度 [法律] extent of repentance; 悔改態(tài)度 [法律] attitude toward repentance; 悔改前非 repent of former misdeeds
不知 1.(不知道) not to know; have no idea of; be ignorant of; be in the dark; be all at sea; know nothing about; be the last person to know; be not aware of; without the knowledge of; be beyond sb.; not to hear about; it beats me.; not to have a clue 不知底細(xì) not know the inside story; 不知如何是好 not know which way to look;不知世事 know nothing about what is going on in the world2.(表示疑問或請求) wonder if 不知你是否可以告訴我 ...。 i wonder if you can tell me ..