1540s (late 15c. as a past participle adjective), as a chemical term for alternating vaporization and condensation, from Latin circulatus, past participle of circulare "to form a circle," from circulus (see circle (n.)). Meaning "to move around, revolve" is from 1670s; of blood, from 1650s; of persons, "to mingle in a social gathering," from 1863. Sense of "to pass about freely" is from 1660s; of newspapers from 1885. Related: Circulated; circulating.
权威例句
1. Merchandise can now circulate freely among the EU countries.
商品现在可以在欧盟各国自由流通。
2. Let me get you something to drink, then I must circulate.
我给你找点喝的,然后我得去应酬一下。
3. Leave a gap at the top and bottom so air can circulate.
上下各留一个口子通风。
4. Draughts help to circulate air.
穿堂风有助于空气流通。
5. You will have a chance to circulate and chat informally.