Certainly的用法為何？同義詞有哪些？

副詞：當然、確實

常見搭配詞：

• be certainly + 形容詞
  確實是…
  例句：The experience was certainly worth the effort.
  這次經歷確實值得努力。
• certainly + 普通動詞
  確實…、當然…
  例句：I certainly understand why you feel that way.
  我完全理解你為什麼會有這種感覺。
• be certainly not / certainly isn’t(aren’t)
  絕對不是
  例句：I’m tired, but I’m certainly not giving up.
  我累了，但我絕對不會放棄。
• 助動詞 + certainly + 原型動詞
  確實…
  例句：Your advice will certainly help him.
  你的建議確實會幫助他。
• certainly + 否定式助動詞 + 原型動詞
  絕對不
  例句：They certainly didn’t believe you.
  他們絕對不相信你。
• certainly agree with somebody
  確實(當然)同意某人
  例句：I certainly agree with your point of view.
  我確實同意你的觀點。
• It is certainly true that SV
  …是確實的、毫無疑問…
  例句：It’s certainly true that she’s talented.
  毫無疑問，她很有才華。
• certainly appreciate
  非常感激
  例句：I would certainly appreciate your help on this.
  我非常感謝你在這件事上對我的幫助。

例句：

1. You certainly have a point there.
   你說的確實有一點道理。
2. I’ll certainly help you with that.
   我一定會幫助你的。
3. I certainly hope that everything will be okay.
   我當然希望一切都會好起來。
4. She’s certainly one of the best singers I’ve heard.
   她確實是我聽過的最好的歌手之一。
5. The movie was certainly interesting.
   這部電影確實很有趣。
6. It certainly seems like he’s avoiding me.
   看來他確實在躲我。
7. He’s not the fastest, but he’s certainly the most consistent.
   他不是最快的，但他肯定是最穩定的。
8. I’m not an expert, but I’ll certainly try my best.
   我不是專家，但我一定會盡我所能。
9. The weather is certainly unpredictable these days.
   最近，天氣確實變幻莫測的。
10. We certainly appreciate your feedback.
    我們非常感謝您的反饋。
11. She certainly knows how to throw a party.
    她真的懂得如何舉辦派對。

同義詞：

• definitely 確定地、無疑地 adv. 強調事實確定，沒有懷疑。
  例句：She will definitely come to the party tonight.
  她今晚一定會來參加派對。
• surely 必定地、確實地 adv. 表示肯定或無疑的情況。
  例句：Surely, you don’t believe that rumor?
  你不會真的相信那個謠言吧？(當surely放在句首，並用逗號隔開，後面多用否定句，且打問號，語意為「難道」)
• absolutely 絕對地、完全地 adv. 用於強調確認或同意。
  例句：I absolutely agree with you.
  我絕對同意你。
• undeniably 不可否認地、確實地 adv. 表示某事是確定無疑的。
  例句：He is undeniably talented.
  他無疑是有才華的。
• unquestionably 毫無疑問地、確實地 adv. 沒有疑問或反駁的可能。
  例句：She is unquestionably the best choice for the job.
  她無疑是這份工作的最佳人選。

衍生字：

• certain 確定的、某一的 adj.
• uncertain 不確定的、不明確的 adj.
• uncertainly 不確定地、猶豫地 adv.
• certainty 確定性、確實 n.
• uncertainty 不確定性、不明確 n.
• certifiable 可證明的、可以證實的 adj.
• certification 證明、認證 n.