1570s, "pertaining to household management;" from economic + -al (1). Sense of "pertaining to political economy" is from 1781, but that sense more commonly goes with economic, and the main modern sense of this spelling is "thrifty" (1780). Related: Economically.
权威例句
1. Mexican cookery is economical, she says. Nothing goes to waste.
“墨西哥的烹调注重俭省,”她说,“任何东西都不会浪费。”
2. Fans of electric cars say they are clean, quiet and economical.
电动汽车迷们说,电动车清洁、无噪音而且经济。
3. It is economical to run and ecologically sound.
这样做比较经济,而且不会破坏生态。
4. His gestures were economical, his words generally mild.
他的肢体语言极尽简化,措词总体温和。
5. The state has paced the whole nation in the economical reform.