But again, why is it so important to know an exact number?

但我还是得问，为何知道确切数字如此重要？

youdao

But I've got to do a detailed calculation before I can give you an exact number.

不过我得仔细算了以后才能告诉你确凿的数字。

youdao

This isn't such a good number, and if you insist on an exact number we're going to pad the bid.

这并不是一个好的数字，如果您坚持一个精确的数字的话，我们将会提高出价。

youdao

It is difficult to determine an exact number because of a lag time in official counts and differences in the states' standards.

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The number of Britons unaccounted for is "significantly" fewer than 30, he told the House of Commons, but he declined to give an exact number because of the complexity of the situation.

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As for the full quality flicks, we can't get an exact number, but we're just going to assume "DVD quality" means 720 x 480, and we did note that sound is 5.1 surround.

ENGADGET: Amazon's Unbox video download service goes live