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