说不准的英文：
There is no say ng.
There is no saying that ...

参考例句：

I can't say for certain.
我说不准。

I can't say for certain what to do.
我说不准该做什么。

I can't tell.
我说不准

Your guess is as good as mine .
我跟你一样说不准。

I cant rightly say what day it is.
我说不准那天是什么日子。

I couldn't decide whether she was joking or not.
我说不准她是不是在开玩笑。

Well, I'm not sure. I'll have to think it over.
这个，我说不准。我得好好考虑一下。

I can't work out how much time it'll take me.
我说不准这要花多少时间。

I don't rightly know whether it was Tuesday or Wednesday.
我说不准那天是星期二还是星期三。

I am not clear about the precise bearing of the word in this passage.
我说不准这个字在这段文章里的确切意义是什么。

there是什么意思：
adv.在那里；在那点上
int. 你瞧，好啦
pron. 表示某物或某人的存在或某事的发生
say是什么意思：
v. 说，讲；讲述，说明；表明；认为，声称
n. 要说的话，意见

To say this is worthwhile.||It is worthwhile to say this.
这话值得说。

He popped in to say hello.
他匆匆进来说声你好。

As they say, honesty is the best policy.
常言道，诚实是最佳策略。

saying是什么意思：
n. 话；谚语；言论
v. say的ing形式

To say this is worthwhile.||It is worthwhile to say this.
这话值得说。

He popped in to say hello.
他匆匆进来说声你好。

As they say, honesty is the best policy.
常言道，诚实是最佳策略。