important medium

• 重要媒介

important medium的用法和样例：

例句

1. Television has become an important vehicle for spreading political ideas.
   电视已成为传播政治思想的重要媒介。
2. The floating population is both the high-crisis group of ADS Infection and the Important Intermediary of ADS.
   摘要目前流动人口既为感染艾滋病病毒的高危人群，又为艾滋病扩散的重要媒介。