余辉-
Certainly
这个单词用来强调和展现（说话一方）对于某件事感到毫无疑问和确信，类似“当然”。
造句范例：
I certainly never expected to become a writer.
It is certainly true that there are .
This car is certainly not mine.
对话范例：
Rose: John, I read your novel yesterday. You are such a great writer.
John: Thanks. I"m glad you liked it.
Rose: Have you always wanted to become a writer?
John: I certainly used to write a lot when I was younger. But I never expected to become a professional writer.
Rose: I must say you are doing well. You are certainly going to be a successful author someday.
John: Well, there"s certainly a long way to go. Can you help me to improve?
Rose: Certainly.
Definitely
这个单词可以被用来表述自己明确的态度，完全的同意或是强烈的肯定，类似“确实”。
造句范例：
I definitely need a holiday.
I think iPhone6 is definitely bigger than iPhone 5.
The hotel fitness centre is definitely worth a visit.
对话范例：
Rose: John, did you call your mother?
John: Not yet. I"ll definitely call her in the evening. I"m sure she"s fine.
Rose: I"ll most definitely not accept any excuse this time. I want you to call her right now.
John: What"s the hurry? I told you I"ll definitely do it once I"m back from work.
Rose: Your relatives are coming over. They"ll definitely ask you for some news about her. Don"t you think calling her back is a good idea?
John: Definitely.
Absolutely
这个词用来表述绝无例外的意思，或强烈地表示绝对赞同的意思，类似“绝对”。
造句范例：
He made his reasons for resigning absolutely clear.
Are you absolutely sure?
This cake is absolutely delicious.
对话范例：
Rose: I absolutely want to do this, John.
John: Do you have any idea of what you are saying? Why do you want to resign?
Rose: I think I"ve made my reasons for resigning absolutely clear.
John: I understand your reasons, Rose. But we had been considering you for a promotion.
Rose: I absolutely understand that it will be a great loss for me to leave at this point. I just can"t stay any longer.
John: It"s your final word then.
Rose: Absolutely!
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