1. dim,  gloomy,  obscure,  vague   模糊的  

2. deadly,  fatal,  mortal   致命的

3. deal with, cope with, dispose of, tackle, handle   处理

4. extinguish, vanish, extinct, die, perish   消逝

5. decide, determine, make up one's mind, resolve   决定

6. decline, refuse, reject   拒绝

7. decorate, ornament   装饰

8. decrease, decline, reduce, diminish, lessen, cut, fall,drop, shrink   减少

9. dedicate, devote   奉献

10. deduce, infer, reason   推理

11. deep, profound   深远的

12. defend, guard, protect, safeguard,shield, shelter   保护

13. delay, postpone, prolong, suspend, put off   延迟

14. replace, substitute   代替

15. deliberately, on purpose, purposely, intentionally   故意地

16. delicate, subtle   精细的

17. despair, desperation, depression, disappointment   失落; 绝望

18. despise, scorn, look down upon, contempt   轻视

19. destroy, eliminate, exterminate, extinguish   消灭

20. detect, discover, perceive   发现

21. determination, resolution, decision, conclusion   决心

22. development,  evolution  发展

23. die, decease,  expire, perish,  pass away  灭亡

24. difference, distinction, discrepancy  区别

25. different, various, diverse  多样的

26. diligent, industrious, hard-working  努力的

27. disadvantage, drawback, shortcoming, weakness  缺点

28. disagree, differ, object  相异

29. disaster, calamity, misfortune, catastrophe  灾难

30. discard, abandon, desert, give up  放弃

31. disclose, expose, uncover, reveal, unveil  揭示

32. disguise, mask, cloak  掩饰

33. disregard, ignore, neglect, overlook  忽视

34. distant, far, remote  遥远的

35. divide, separate, part, divorce, depart  分开

36. doctor, physician, surgeon  医生

37. doubt, suspicion, distrust, skeptical, suspect  怀疑

38. dream, fantasy, illusion  梦想

39. due to, owing to, because of, thanks to    幸亏

40. dull, stupid, foolish, silly    愚蠢的