a way of communicating information, etc. to people 媒介；媒体◆the medium of radio/television 广播／电视媒体◆The Internet can be an effective advertising medium. 互联网可以成为有效的广告媒介。◆Email is our preferred medium for communicating with clients. 电子邮件是我们与客户交流的首选媒介。◆The ad campaign will run across all media. 广告活动将在所有媒体展开。HELP The plural in this meaning is usually media. 这一含义的复数形式通常是 media。➡mass media ⨁an effective / a good / powerful medium 有效的／良好的／强大的媒体⨁an electronic / interactive / online medium 电子／交互式／在线媒体⨁an outdoor / a print / traditional medium 户外／印刷／传统媒体
something that is used for a particular purpose 媒介◆Euros have been used as a medium of exchange since 1999. 欧元自 1999 年以来一直是用作外汇兑换媒介。