economical
/ˌiːkəˈnɒmɪkəl/adjective
1- giving good value or service in relation to the amount of money, time, or effort spent经济的, 合算的：
a small, economical car.
一辆经济型小汽车。
1.1
- (of a person or lifestyle) careful not to waste money or resources（人, 生活方式）不浪费钱（或资源）的, 节约的, 节省的。
1.2
- using no more of something than is necessary不浪费的; 简练的, 简洁的：
the cast are economical with their actions.
演员们的动作干净利落。
短语
economical with the truth
- 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.]