used euphemistically to describe a person or statement that lies or deliberately withholds information
〈婉〉（人或陈述）故意隐瞒真相的, 谎话连篇的。
[ORIGIN: from a statement given in evidence by Sir Robert Armstrong, British cabinet secretary, in the 'Spycatcher' trial (1986), conducted to prevent publication of a book by a former MI5 employee. The theological phrase economy of truth （i.e. sparing use of truth） has long been in use.]