Take the 2-minute tour ×
Chinese Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Chinese language. It's 100% free, no registration required.

I recently had to select the correct answer for a homework assignment:

我学了10年汉语了,含有水平 。。。 很高

I chose 一定,but the correct answer turned out to be 当然

Was my answer incorrect, why?

How do these two answers differ in meaning. I'm thinking perhaps that 当然 has a stronger connotation of certainty, as in yes my Chinese level is very high, where as 一定 implies that it should be high, but isn't necessarily... Is this correct?

share|improve this question
"我学了10年汉语了,含有水平 。。。 很高" I guess 含有 should be 汉语, am I right? If so, please correct it to avoid possible misunderstandings. –  Stan Mar 30 '14 at 9:11
The whole sentence sounds unnatural. A better way to phrase it would be "我学汉语学了10年,水平 _ _ 高". –  杨以轩 Mar 31 '14 at 1:57
"实用汉语近义虚词词典":当然(副)/一定(副)[相同]都是副词,作状语,表示对事情的肯定。常可互换,但意思有一点不同:"一定"主要表示主观的肯定:"当然"主要‌​表示按道理肯定是这样:1只要你的建议合理,我当然会赞成。(一定✓)2对于农业税收的相关政策,农民当然十分关心。(一定✓)3比赛这么精彩,我当然要去看。(一定✓)4‌​我是你的父亲,你的成长我一定要关心。(当然✓)5既然大家都赞成去郊游,老师一定也不会反对。(当然✓)6要想写好汉字,一定要每天练习。(当然✓)[不同]1。"当然"‌​可以用在主语之前:"一定"不能:1只要你的建议合理,当然我会赞成。(一定✖)2对于农业税收的相关政策,当然农民十分关心。(一定✖)3比赛这么精彩,当然我要去看。(‌​一定✖)2。"当然"可以用在两个句子之间,后边有逗号;前面的句子先说明事实,后面的句子从另一个方面进行补充或修正,此时"当然"相当于"但是"。"一定"没有这个用法‌​:1我能力有限,恐怕帮不了你怎么,当然,如果需要,我肯定会帮忙。(一定✖)2这次活动原则上不允许请假,当然,如果有特殊情况,公司也会考虑的。(一定✖)3我自己的事‌​情自己决定,当然,父母的意见我也是会认真考虑的。(一定✖)4这几年我们的工作取得了很大的成绩,当然,还存在不少缺点。(一定✖) –  user6065 10 hours ago
3。"当然"可以用于前一分局,先肯定事情的某一方面,后一分局再补充不足之处,后一分句中常有"不过、就是、但是"等词语。此时"当然"相当于"虽然","一定"不能这‌​‌​‌​‌​样用:1这套衣服当然漂亮,就是价钱比较贵。(一定✖)2这里的房子当然很好,但是离我上班的地方太远了。(一定✖)3生活在城市中当然方便,不过空气不太好。‌​(一‌​定✖‌​)4‌​。"一定"还表示对某种情况确切的估计或推测,相当于"肯定";"当然"无此用法:1你一定以为他在骗你,其实他说的是真话。(当然✖)2大家都相‌​信这件事‌​一定不是‌​你做的。‌​(当然✖)3忙了一天,你一定累了吧?。(当然✖)5。"一定"可以表示强烈的决心和坚定的意志,还可以用于祈使句,表示请求或命令;‌​"当然"没有‌​这些用法:1‌​无论如何,这‌​次我一定要通过考试。(当然✖)2李红说毕业以后一定要找个好工作。(当然✖)3到时候你可一定要来呀!4你一定要帮帮我‌​呀!。(当然✖) –  user6065 7 hours ago
one may ask is the phrase in question an inference (in which case according to 4 一定 would be appropriate or does it express a subjective opinion, in which case 当然 should be used (see start of second last comment, since the speaker is expressing her/his opinion on her/his achievements (or lack thereof) it would appear the noted correction to "当然"is justified, 问题是,该句话是推测(若是那样的话,就鉴于第4点应该用"一定")还是表示某种主观意见(在这种情况下鉴于引述参考手册条目用"当然"为最合适.因为说话人是表示关于自‌​己在学汉语得到的成就的主观看法,提出的校正看来很有道理。 –  user6065 7 hours ago

7 Answers 7

up vote 12 down vote accepted

一定 either introduces an INFERENCE, which is very likely to be true (as in the context of the given sentence), or shows a strong intention (in other contexts). On the other hand, 当然, equivalent to the English 'of course', indicates an inevitable consequence that the speaker KNOWS to be true.

In this sentence, since the speaker is talking about himself, he does not need to make an inference about him being good at Chinese; he knows he is good at Chinese. Therefore 当然 would make more sense here.

An easy way to differentiate the two is to translate the sentence into English with 一定 and 当然 replaced by 'must be' and 'of course', respectively, and you will be able to immediately see which one is better.

share|improve this answer
great answer! although this seems to be contrary to what user1228520 says in his answer about 一定 being more certain. I think your answer is correct but I'm a bit confused now.. –  Samuel Parsonage Mar 30 '14 at 1:48
Well, I guess a better way to put this is that 一定 makes you SOUND more 'certain' than 当然. By saying 一定, you are making a guess, but you believe that guess is very likely (say, >98%) correct. And you sound eager to show off this high probability. For 当然, depending on the context, you may be stating an obvious fact in an indifferent tone, but everyone knows that it is 100% true. Again, just compare 'must' and 'of course' and you will know what I am talking about. –  Mingjing Zhang Mar 30 '14 at 2:08

This question is really tricky. As a native speaker, I would say it depends on what the speaker is trying to say here.

It's really hard to explain so I put up some English translations that have very close meaning and tone to both 当然 and 一定


I've been learning Chinese for 10 years, OF COURSE my level is very high.


I've been learning Chinese for 10 years, my level is DEFINITELY very high.

I've been learning Chinese for 10 years, my level MUST be very high.

So basically 一定 is more like a judgment and is more certain. From the English examples above you could see that all of them are right in terms of language itself.

But I believe, not many people would say themselves must be good at something. To me it sound more natural if saying about others like "He's been learning Chinese for 10 years, his level MUST be very high." The same concern is valid in Chinese, I guess that's why the correct answer is 当然

share|improve this answer
Yes, another example in English: 'He walked for 10 miles, he must be tired' is okay, but 'I walked for 10 miles, I must be tired' isn't, while 'of course I'm tired' would be. You know for certain whether you are tired or not, so it sounds weird to use 'must be'. –  neubau Mar 30 '14 at 1:36

一定 means "definitely," while 当然 means "of course." In both English and Chinese, these two words have very similar meanings. They pretty much have the same denotation; I can't think of an example where it would be factually accurate to use one and factually inaccurate to use the other. However, they differ in their connotation. Both express certainty, but 当然 does so in a way that presumes the certainly should be obvious.

In your case, since the person studied Chinese for 10 years, it is obvious (at least to the speaker) that he is good at it. Note that if the sentence were this instead:

他学了10年汉语了,含有水平 。。。 很高

both would be acceptable, but have slightly different connotations. 一定 implies that the speaker is inferring that that person must be good at Chinese since they've been learning it for 10 years. 当然 implies that the speaker knows that that person is good at Chinese and using the fact that they have been learning it for 10 years as evidence to support this "obvious" point.

share|improve this answer

"一定" means "definitely".

We use this word when you confirm something is truth.

For example, you can write: "我*一定*去" means:

I confirm that i will go.

"当然"(write "當然" when you translate it into traditional Chinese) means "of course".

We use this word when you describe something as "certainly", "no doubt", or "the result will happen naturally".

For example, you can write: "我*當然*去" means:

I will surely go.

Remember, 一定 is a stronger than 當然 when describe something.

More example: "理所当然" means something is reasonable and no doubt.

You think or you judge something is reasonable, so you do it because you think it's right.

But it does not confirm something. If you have evidence and confirm something is right, you can use 一定

share|improve this answer

I think there is a typo, it should be 汉语水平...很高, not 含有水平...很高。

however, whether it is a typo or not, your question is already explained by the previous answerers

share|improve this answer

水平 自然 很 高 。。。。。。。。。。。。。。。。。。。。。。。。

share|improve this answer
This answer isn’t helpful, I’d even say 這個答案一定沒有助 ;-) –  Philipp 11 hours ago

Usually, when we say "一定" under this circumstance, it sounds like the speaker is inferring something, so when you try to express the truth that you've learned Chinese for 10 years, and your Chinese proficiency is pretty high, you are not inferring this truth.

For example, if you say that your friend has been learning Chinese for 10 years, and you think his Chinese must be(一定) pretty good! In this case, for something you're not really sure but you just think it should be, use "一定"。 However, when you say I've learned Chinese for 10 years, and I'm confidently proficient in Chinese, you are actually showing off that your Chinese is really good! So you use "当然" to show that you're fully confident with you Chinese proficiency and you're proud of that and cannot wait to show off your Chinese.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.