They've had to make economies since Nathan lost his job.
自從南森失業以來,他們不得不節儉度日。
This can be done by machines with more speed and economy.
這可以用機器來完成,又快又經濟。
She writes with such economy - I've never known a writer say so much in so few words.
她惜墨如金——我從沒見過哪位作家能如此言簡意賅。