Thanks to your encouragement, I made continuous progress in math, and finally made up my mind to study it in the university.

多亏了你的鼓励，我在数学上不断地取得进步，最终决定在大学里学习数学。

youdao

Yesterday you agreed. What made you change your mind?

昨天说得好好的，怎么变卦了？

《新英汉大辞典》

Whatever made you change your mind?

是什么使你改变主意的？

youdao

All right now, now what I'd like you to do is just sort of do a guestimate in your mind of the percentage errors you might have made overall in these estimates, and I'll come back and ask you in a minute.

好了,现在,现在我希望你们,在脑海中估算下你们预测的百分误差,你们可以就总值做一个估算,我会在一分钟后问你们

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A third example is when you're pondering something. Maybe you haven't quiet made up your mind,

第三种情况是，当你在思考一些事的时候，你可能还没有完全想好。

I think 课堂 - SpeakingMax英语口语达人

But I guess you had already made up your mind long before the story was considered.

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They said they were "alarmed and distressed" by reports in the press and comments by senior MPs, that "you have already made up your mind and that you were 'preparing to reject statutory intervention in the regulation of the press even if it is strongly recommended by Lord Justice Leveson".

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Was that the distinction you made when you signed that affidavit, in your own mind?

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