情景对话：

The other one, out in the RV, he's uh...You're sure?
Yes.
You're positive?
You're feel free to go check it yourself.

知识点讲解：

Are you sure? 你确定？
You're sure? 你确定？

【例句一】
Do we really need that much glue? You're sure?

你真的要这么多胶水吗？你确定？

【例句二】
A: The paper is due next Monday, not this Monday.
论文下个周一要交，不是这周一哦。
B: You're sure? Because I thought the professor said we only have a weekend to do it.
你确定吗？因为我觉得教授说了，我们只有一个周末去完成它。

You're positive? 你肯定？

【例句一】
You're positive? I don't think Gail would say something like that.
你确定吗？我不觉得Gail会说那样的话。

【例句二】
You're positive you heard something in our house? I'll go check.
你确定你听到了有东西在我们家里吗？我去看一看。

Feel free to... 那你就去…

【例句一】
A: You sure that's what he wanted?
你确定他要这样？
B: Feel free to go ask him yourself.
那你就去问问他啊。

【例句二】
A: You're positive? It was working a minute ago.
你确定吗？一分钟前它还好用。
B: Feel free to try it yourself.
那你就自己试试吧。

I'm sure. 我确定。
I'm positive. 我确定。

【例句】
I'm positive I saw them together at the movies.
我确定在电影院看见他们在一起了。

at the movies
在电影院看电影的时