确切地说:
1. properly speaking
2. be more exact
Examples:
1. 我不能确切地说出那所房子的年代,但一定是很古老的。
I can't date that house exactly, but it must be very old.
2. 他五十多岁,嗯, 确切地说是五十六岁。
He's in his mid-fifties; well, fifty-six to be exact (ie more accurately).
3. 我不能确切地说下周我在什么地方。
I can't say with any certainty where I shall be next week.
4. 这项新产品,确切地说是这种新款式的衬衫,并不是非常吸引人的。
This new product, or rather, this new style of shirt, is not very attractive.
本回答被网友采纳有多种表达方式
or rather
to be exact
to be more precise
properly speaking