That's my personal opinion.

这是我的个人意见。

《柯林斯英汉双解大词典》

Of course, this is just a personal opinion.

当然了，这只是个人意见。

《牛津词典》

My personal opinion is that the all-round development of scholars is only possible when the educational institutions provide them with a wide range of learning opportunities.

我个人的观点是，只有教育机构为学者提供广泛的学习机会，他们才能全面发展。

youdao

It was his personal opinion. But he did not believe that the Constitution gave him the power to free all the slaves.

VOA: special.2009.10.08

Yes, to me personally, I feel like it all depends on one's personal morals and like we can't sit here and just, like this is just my opinion, ... of course other people are going to disagree but Well we'll see, let's see what their disagreements are and then we'll see if they have reasons that can persuade you or not.

对，就我个人来讲，我觉得这完全取决于一个人的道德修养,而不是我们在这坐着说得清楚的，当然这只是我一家之言，其他人肯定会反对，但是,这个到时再说，先看他们的反对意见是什么,再来看他们的理由是否能说服你。

耶鲁公开课 - 公正课程节选

They mean a kind of news reporting that uses an emotional style and personal opinion.

VOA: special.2009.08.28

Whether it would be more expert is a matter of conjecture and personal opinion.

BBC: Elected House of Lords 'would cost more'

So some parents may have been stating a personal opinion, and not necessarily a correct one.

NPR: Study: Food, Skin Allergies Increasing In Children

I'm appalled by it, I do think it's an outrage, this is a personal opinion.

BBC: Is truth a victim?