really和certainly用法有什么区别？
副词 ad.
1. 无疑地;必定;确实
They will certainly succeed.
他们一定会成功。 2. (用于回答)当然;可以;没问题
"May I use your motorcycle?" "Certainly".
"我可以借用你的摩托车吗?""行。" 副词 ad.
1. 真地,确实,实际上
Did she really say that?
她真的那么说了? 2. 很,十分,全然
It's really cold today.
今天很冷。 3. (用以加强语气)实在,其实
You ought really to have asked me first, you know.
要知道,你本应先问一问我的。 4. (表示疑问、惊讶、恼怒等)真的;是吗;真是的
Well, really! You needn't have said that.
mind doing something
certainty是什么意思
certainty[英][ˈsɜ:tnti][美][ˈsɜ:rtnti]
n.确定性，确实性; 确定的事，必然的事;
复数：certainties
例句:
But nothing in politics is a certainty.
但在政治中没有什么事是确定的。
英汉词典
1.N-UNCOUNT确定;有把握Certainty is the state of being definite or of having no doubts at all about something.
I have told them with absolute certainty there'll be no change of policy...
我已经十分肯定地告诉他们，政策不会变。
2.N-UNCOUNT必然(性);肯定(性)Certainty is the fact that something is certain to happen.
A general election became a certainty three weeks ago.
3个星期前举行普选已确定无疑。
3.N-COUNT确定无疑的事情;必然的事Certainties are things that nobody has any doubts about.
There are no certainties in modern Europe...
当代欧洲没有什么是确定无疑的。
certainly certain certainty 3个单词的意思都差不多..用法区别在哪呢?
Certainly.固然了；当然可
Certainly那还用说
certainly:当然地
"They certainly have", said the Master.
“他们确实做到了”，大师说。
I have certainly enjoyed this afternoon.
我的确非常喜欢这个下午。
And they certainly alter individual reactions to medicines.
当然它们也改变个体对药物的反应。
certain ['sə:tən]
adj.
1. 确凿的，毫无疑问的
2. 确定的；固定的
3. 必定的，必然的
4. 可靠的，可信赖 的
5. 有把握的；无偏差的
6. 肯定的，确信的，自信的；注定的
7. 某；某一；某种
8. 一些；一定程度上的
a certain extent 一定程度上
a certain degree 到某种程度
for certain 肯定地；确凿地
certain level 某一水平
a certain amount of 一定数量的
Hunting is legal only in certain seasons.
打猎只有在某些季节才是合法的。
He found that damage to certain genes was a cause of cancer.
他发现某些基因的损伤是造成癌症的原因之一。
So from the beginning we learn to be a certain way or to wear certain clothes.
所以从一开始我们就要学习走一条特定的路或是穿特定的衣服。
certainty ['sə:tənti]
n.
1. 必然(性)；确实可靠(性)；确信；肯定，毫无疑问
2. [复数]必然的事；确实的事；毫无疑问的事
The only certainty is that even though GM has a new boss, the government is really in control.
而唯一能肯定的就是，即使通用换了新掌门人，实际上还是在政府操控之下。
Politicians and the media invoke the certainty of social instability should the number of foreigners rise.
政客和媒体都说如果外国人数量上升肯定会导致社会的不稳定。
In reality, scientists do not deal in certainty but in probabilities, and the way they calculate these probabilities is complex.
实际上，科学家们分析的是可能性，而不能断然肯定，而且他们计算这些可能性的方法很复杂。
