iphone7创意配件:certain和sure是一样的吗？可以互唤吗？他们有什么不同的吗？

两者同意，通常可以互换。但常更有力地表示确实知道某事是真的时候用CERTAIN。而且各有的固定搭配影响到他们有时又不能互换。
be sure of
be sure to do
make sure
be sure of oneself
to be sure= indeed
for sure

for certain
make certain
be certain

1一样的,都是肯定的。
I am certain that you are stupid
I am sure that you are stupid

2不一样
certain student in the class is stupid
这里certain指某一个，特定的一个，
和specific以一样.不可以换sure.

Certain与sure的区别

两词都意为：确信：而sure的主语多为“人”。Certain的主语既可是人，也可用“ it is certain that …”

Sb. be sur/certain of/about

Sb. be sure/certain that clause

It is certain that sb. do sth

We are sure of his coming to the opening ceremony.我们确信他会出席开幕式。

Our class football team is sure to win the watch.我班足球队肯定会赢比赛。

The public are sure that anyone who commits a crime will be punished by law. 人民大众深信任何犯罪分子都将收法律的惩办。

We are certain of his honesty and loyalty.我们毫不犹豫他的诚实和忠诚。

She is certain to do well in the coming mid-exam.她这次其中考试肯定等考好。

It is certain that two plus two makes four.2加2得4是确定无疑的。

That Princess Diana was dead is certain .

I am not sure about that.

位置不一样。另外certain还表示某个，某种程度上，不确定的意思。