英语会话王:会话急救包 第25期

I'm not sure about that.

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我想不大可行吧？

I wouldn't say that.

我不赞同。

I'm not sure that's the case.

我不确定是否是那样。

Why not?

为什么不？

It may not be that simple.

问题可能没那么简单。

I don't often use them.

我很少使用。

I wouldn't really know.

我不知道。

I'm not really sure.

我不大确定。

I wouldn't know anything about that.

我不知道。

There's nothing wrong with it.

那个没有什么不好。