| 1. 劍橋英英字典 duration duration |
2. 雅虎奇摩字典 duration |
3. 韋氏線上字典 duration |
4. 朗文英英字典 duration |
| 5. Google字典 duration |
6. icibt寫作句庫 duration |
7. 美國遺產字典 duration |
8. wiktionary duration |
| 9. Wikipedia duration |
10. Howstuffworks duration |
11. Urban Dictionary duration |
12. EarthSky duration |
| 13. answers.com duration |
14. WordReference.com duration |
15. 英漢詞典 duration |
16. yourdictionary.com duration |
| 17. Webster Dictionary duration |
18. onelook.com duration |
19. W3dictionary duration |
20. Medlineplus dictionary duration |
| 21. Inogolo(名字發音) duration |
22. Forvo(發音) duration |
23. Quotations(語錄) duration語錄 |
24. 韋氏線上學生字典 duration |
| 25. 韋氏線上學生詞典 duration |
26. 韋氏線上押韻字典 duration |
27. Thesaurus.net同義字典 duration |
28. Macmillan Dictionary duration |
| 29. Macmillan Thesaurus duration |
30. getwords.com duration |
31. bettermedicine.com duration |
32. Collins duration |
| 33. Oxford Dictionary duration |
34. Oxford ALD duration |
35. ozdic.com duration |
36. Oxford American duration |
| 37. Stanford Encyclopedia of Philosophy duration |
38. 圖片搜尋 duration |
39. PDF搜尋 duration |
40. SWF搜尋 duration |
| 41. English-cobuild duration |
42. Babylon English duration |
43. Babylon Search duration |
44. AlphaDictionary duration |
| 45. 線上英漢字典 duration |
46. Wordnik duration |
47. 同義與反義字 duration |
48. howjsay . com duration |
| 49. Medical Dictionary duration |
50. Your Dictionary Sentences duration |
51. PronounceHow duration |
52. Dictionary Reverso duration |
| 53. Memidex(發音) duration |
54. dict.cc duration |
55. Name Pronunciation duration |
56. Vocabulary.com duration |
| 57. WebMD duration |
58. 海詞 duration |
59. 新浪香港 duration |
60. Linguee duration |
| 61. VoiceTube duration |
62. 大詞典 duration |
63. sentencedict.com duration |
64. definition-of.com duration |
| 65. YouTube duration |
66. 詞都 duration |
67. 押韻詞典 duration |
68. RhymeZone duration |
| 69. RhymeZone duration |
70. 漢語詞典 duration |
71. Pronounce Names duration |
72. Youglish duration |
| 73. 查文法 duration |
74. Purdue OWL duration |
75. Reference.com duration |
76. Ozdic.com 語詞搭配 duration |
| 77. OXFORD 語詞搭配 duration |
78. YARN movie clips duration |
79. Ted.com duration |
80. thesaurus.plus duration |
| 81. cliffsnotes duration |
82. sparknotes duration |
83. Describing Words duration |
84. Ludwig duration |
| 85. study.com duration |
86. webmd.com duration |
87. word hippo(adj) duration |
88. word hippo(noun) duration |
| 89. word hippo(verb) duration |
90. word hippo(adv) duration |
91. word hippo(singular) duration |
92. word hippo(pl.) duration |