1. old and new 新旧 2. young and old 老少 3. man and woman 男女 4. man and wife 夫妇 5. officers and men 官兵 6. black and white 黑白 7. far and near 远近 8. high and low 高低 9. up and dow 上下 10. more and less 或多或少 11. off and on 断断续续 12. rain or shine 晴雨 13. sooner or later 迟早 14. right and left 左右 15. rich and poor 贫富 16. northeast 东北 17. southeast 东南 18. southwest 西南 19. northwest 西北 20. heat and cold 冷热 21. heavy and light 轻重 22. iron and steel 钢铁 23. twos and threes 三三两两 24. heart and soul 全心全意 25. ways and means 方式方法 26. fair and square 公平合理 27. pick and choose 挑来选去 28. safe and sound 安然无恙 29. leaps and bounds 突飞猛进 30. tit for tat 针锋相对