Such and such a piece of information

[rich7]

Test No. incompl/advan-39 "State Secrets", question 1

We often hear that such and such a piece of information cannot be released into the public ......... in the interest of national security.

(a) dominion
(b) domination
(c) domain
(d) domestic

Test No. incompl/advan-39 "State Secrets", answer 1

We often hear that such and such a piece of information cannot be released into the public domain in the interest of national security.

Correct answer: (c) domain

Your answer was: correct
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what does the "such and such" phrase mean?

[Torsten]

such and such a piece of information = various pieces of information
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[doanngockhanh]

Hi,
I don't get this sentence. Public domain is a set of word means what?
Thank you so much

[Torsten]

The public domain in the given context means people who follow the news and current events in their country.
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary