烟火正好在八点开始。

The fireworks begin at eight o'clock ___precisely.

你认为问题到底是什么？

What do you think the problem is, ___precisely?

他出生在乡村，更确切地说是在勃艮第，并且一直住在那里。

He was born in the countryside, more ___precisely in Bourgogne, and he had always lived there.