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