欠条: IOU, certificate of indebtedness...
深入: to penetrate deeply, thorough...
古代: ancient times, olden times...
无形: incorporeal, virtual, formless, invisible (assets), intangible...
根深蒂固: deep-rooted (problem etc)...
快乐: happy, merry...
从而: thus, thereby...
残: to destroy, to spoil, to ruin, to injure, cruel, oppressive, savage, brutal, incomplete, disabled, to remain, to survive, remnant, surplus...
审查: to examine, to investigate, to censor out, censorship...
摆脱: to break away from, to cast off (old ideas etc), to get rid of, to break away (from), to break out (of), to free oneself from, to extricate oneself...
