The exact number of protest calls has not been revealed.

抗议电话的确切次数尚未披露。

《柯林斯英汉双解大词典》

The exact number of embryos lost to cryoinjury varies.

冷冻损伤胚胎的确切数目各不相同。

youdao

The exact number is a state secret.

准确的数字属于国家秘密。

youdao

The general consensus is - not knowing,again, the exact number of centrifuges that we actually have visibility into - we are talking one year."

VOA: standard.2010.04.14

I forget the exact number of the ones in the Semitic alphabet, but we're talking about roughly twenty-five.

我忘了闪米特语中有多少字母,粗略说来大概有二十五个

耶鲁公开课 - 古希腊历史简介课程节选

The bailout --I don't have the exact number here -it was a huge number of Euros.

这次救助,我这儿没有准确数字,但它确实耗费了巨额欧元

耶鲁公开课 - 金融市场课程节选

So we can't tell you the exact number of times Ron Paul was searched, for instance.

FORBES: Only Online: Ron Paul Beats Hillary Clinton

The exact number of jobs under threat at the college is not yet known.

BBC: College staff told to expect 'devastating' job losses

Experts say it is impossible to know the exact number because many kidnappings go unreported.

CNN: Kidnapping is big business in Colombia