certainly

adv.

1. 无疑；确定；肯定
   without doubt
   1. Without treatment, she will almost certainly die.
      要是不治疗，她十有八九会死。
   2. Certainly, the early years are crucial to a child's development.
      毫无疑问，幼年对儿童的成长至关重要。
   3. I'm certainly never going there again.
      我肯定不会再去那里了。
2. 当然；行
   of course
   1. ‘May I see your passport, Mr Scott?’ ‘Certainly.’
      “斯科特先生，请出示您的护照好吗？”“当然可以。”
   2. ‘Do you think all this money will change your life?’ ‘Certainly not.’
      “你认为这些钱会改变你的生活吗？”“当然不会。”

1. ADV-GRADED 当然;肯定
   You use certainly to emphasize what you are saying when you are making a statement.
   1. The public is certainly getting tired of hearing about it...
      关于此事，公众当然已经听腻了。
   2. The bombs are almost certainly part of a much bigger conspiracy...
      几乎可以肯定，这些炸弹是一个更大的阴谋的一部分。
   3. Today's inflation figure is certainly too high...
      今天的通胀率确实太高了。
   4. Certainly, pets can help children develop friendship skills.
      宠物的确能够帮助孩子们培养交友技能。
2. ADV (表示同意)当然，行，没问题
   You use certainly when you are agreeing with what someone has said.
   1. 'In any case you remained friends.' — 'Certainly.'...
      “无论如何，你们都是好朋友吧。”——“那当然。”
   2. 'You keep out of their way don't you?' — 'I certainly do.'
      “你会离他们远远的，是吧？”——“一点儿不假。”
3. ADV as reply 当然不
   You say certainly not when you want to say 'no' in a strong way.
   1. 'Perhaps it would be better if I withdrew altogether.' — 'Certainly not!'
      “也许，我完全退出更好吧。”——“当然不是！”

You use certainly to emphasize that what you say is definitely true. His death was certainly not an accident. You use surely to express disagreement or surprise. Surely you care about what happens to her. Both British and American speakers use certainly to agree with requests and statements. 'It is still a difficult world for women.' —'Oh, certainly.' Note that American speakers also use surely in this way. 'Can I have a drink?' —'Why, surely.'
certainly可以用来强调所说内容属实：His death was certainly not an accident (他的死绝非意外)。surely 可用来表示反对或惊讶：Surely you care about what happens to her (不用说，你一定关心她的事吧)。美国人和英国人都用 certainly 表示同意请求和陈述：‘It is still a difficult world for women.’—‘Oh, certainly.’(“如今的世界对女性而言仍然很不容易。”——“嗯，那当然。”)注意，在这种情况下，美国人也用 surely: ‘Can I have a drink?’—‘Why, surely.’(“我能不能来杯饮料？”——“噢，没问题。”）

1. You look great, Brian. The Bahamas certainly agree with you.
   你看上去气色好极了，布赖恩。巴哈马显然很适合你。
2. I certainly don't begrudge him the Nobel Prize.
   我当然不会嫉妒他得了诺贝尔奖。
3. The public is certainly getting tired of hearing about it
   关于此事，公众当然已经听腻了。
4. The bombs are almost certainly part of a much bigger conspiracy
   几乎可以肯定，这些炸弹是一个更大的阴谋的一部分。
5. Today's inflation figure is certainly too high
   今天的通胀率确实太高了。
6. Certainly, pets can help children develop friendship skills.
   宠物的确能够帮助孩子们培养交友技能。
7. 'In any case you remained friends.' — 'Certainly.'
   “无论如何，你们都是好朋友吧。”——“那当然。”
8. 'Perhaps it would be better if I withdrew altogether.' — 'Certainly not!'
   “也许，我完全退出更好吧。”——“当然不是！”
9. The story she told was certainly colourful, and extended over her life in England, Germany and Spain.
   她讲的故事确实很有趣，涉及了她在英格兰、德国和西班牙的生活。
10. I certainly don't deal drugs.
    我当然不贩毒。
11. Luck is certainly one deciding factor.
    运气当然是一个决定因素。
12. It was all done in the heat of the moment and I have certainly learned by my mistake
    所有的一切都是在一怒之下干的，我无疑已经从自己的错误中吸取了教训。
13. He certainly was not politically inactive
    他政治上当然不是无所作为。
14. It may not be great literature but it certainly had me riveted!
    这可能不算伟大的文学作品，但它无疑深深地吸引了我！
15. There are some very obvious phrases that we all know or certainly should know better than to use.
    我们都知道或是肯定应该知道有些说法已毫无新意，最好避免使用。
16. Japanese democracy is certainly different from ours
    日本的民主制度无疑与我们的不同。
17. It was certainly serious enough for him to reconvene Parliament
    他重新召集国会当然是件非常重大的事了。
18. Geoff Cooke's recent remark that no one is indispensable will certainly not have escaped him.
    杰夫·库克近来关于没有什么人是不可缺少的那番话当然也包括他。
19. I certainly don't remember talking to you at all
    我当然完全不记得和你讲过话。
20. I'm certainly not scared of him
    我当然不怕他。
21. Obviously I can't speak for other people, but certainly no one I know would entertain the idea.
    我显然不能代表其他人的意见，可是我认识的人当中肯定没有人会有这样的想法。
22. This is certainly a theoretical risk but in practice there is seldom a problem
    从理论上讲，这肯定是有风险的，可是实际上很少出问题。
23. I want this baby very much, because it certainly will be the last.
    我很爱这个小宝贝，因为它肯定是我最后一个孩子了。
24. You certainly seem to be in deep water
    你看起来无疑是陷入了困境。
25. This was certainly a welcome change of fortune
    这确实是命运中一个令人欣喜的转变。
26. You can certainly use my dictionary.
    你当然可以用我的字典了。
27. This suggestion will certainly lead to an argument.
    这个建议必将引起一场争论。
28. If you hadn't reminded me of this matter, I would certainly have forgotten it.
    亏了你提醒我，不然真把这事忘了。
29. We will not attack unless we are attacked; if we are attacked, we will certainly counterattack.
    人不犯我，我不犯人；人若犯我，我必犯人。
30. We can certainly have the job finished on time.
    我们肯定能按时完成任务。

  absolutely certainly surely【导航词义：肯定地】

  absolutely adv. 绝对地，当然

〔辨析〕常用于加强语气，多用于口语中。

  certainly adv. 无疑，确定；当然

〔辨析〕强调毫无疑问。

  surely adv. 〈正式〉必定，无疑

〔辨析〕强调必然性，表示主观判断。

adv

1. definitely or positively (`sure' is sometimes used informally for `surely')
   1. the results are surely encouraging
   2. she certainly is a hard worker
   3. it's going to be a good day for sure
   4. they are coming, for certain
   5. they thought he had been killed sure enough
   6. he'll win sure as shooting
   7. they sure smell good
   8. sure he'll come

   Synonym:    surelysurefor surefor certainsure enoughsure as shooting