常見例句雙語例句This model of typewriter is efficient and durable, economical and practical for middle school students.這個(gè)型號(hào)的打字機(jī)對中學(xué)生來說，高效、耐用、經(jīng)濟(jì)、實(shí)惠。And when I have the honour of seeing her again, I shall certainly tell her how modest, economical and practical you are.我下次有幸再見到她時(shí)，一定會(huì)告訴她你多么謙虛，多么勤儉，多么實(shí)際。The practice shows that these measures are simple, economical and practical, and the reliability of the control system is improved.實(shí)踐表明，這些軟件抗干擾的措施簡單易行、經(jīng)濟(jì)實(shí)用，提高了控制系統(tǒng)的可靠性。權(quán)威例句Smart cities and homes have gained extra urgency in recent years because advances in technology now make a lot of innovations—like shutting off your air conditioner from the car—practical and economical.FORBES: Panasonic's Next Product: A Small Green Town 返回 economical and practical