更正: to correct, to make a correction...
囚犯: prisoner, convict...
垫: pad, cushion, mat, to pad out, to fill a gap, to pay for sb, to advance (money)...
座: seat, base, stand, (archaic) suffix used in a respectful form of address, e.g., classifier for buildings, mountains and similar immovable objects...
自尊: self-respect, self-esteem, ego, pride...
沙滩: beach, sandy shore...
后退: to recoil, to draw back, to fall back, to retreat...
抓紧: to grasp firmly, to pay special attention to, to rush in, to make the most of...
补课: to make up missed lesson, to reschedule a class...
圣贤: a sage, wise and holy man, virtuous ruler, Buddhist lama, wine...