B: Thank you, This is mine.

谢谢，这是我的。

youdao

"Whose is this?"—"It's mine."

“这是谁的？”—“是我的。”

《柯林斯英汉双解大词典》

This ox is mine.

这头公牛是我的。

youdao

However,this is not the first time the mine has been used for science.

VOA: special.2009.07.21

She also loves astronomy, which is incidentally an interest of mine too, but you won't hear about it again in this course.

她还喜欢天文学,巧合的是,这也是我的爱好之一,但在这节课上我也不会提及

耶鲁公开课 - 金融市场课程节选

I want to say something about a particular interest of mine because it is part of this course, although not the entire course.

下面我想谈谈,我特别感兴趣的一个问题,因为这也是这门课的一部分,虽然不是这门课的全部内容

耶鲁公开课 - 金融市场课程节选

And so I want to propose a toast -- I believe this is mine -- to our friends, President Lee and First Lady Kim, and to their delegation, most of all to the enduring alliance between our nations, a partnership of the heart that will never be broken.

WHITEHOUSE: President Obama Toasts President Lee Myung-Bak of the Republic of Korea | The White House

If you ask a farmer in America he or she will say this land is mine, it will allways be the land of my family.

FORBES: The Unbearable Whiteness of Piet-ing: Dutch Santa's Blackface Elves

This world is mine for the taking, make me king...

NPR: 4 min 29 sec