The blue cap is a medium size.
那顶蓝色的帽子就是中号的。
The clothes should be washed at medium temperature.
这衣服需以适中温度洗涤。
Sound travels through the medium of air.
声音通过空气这一媒介传播。
Television is a very efficient medium for spreading information.
电视是传播信息的很有效的媒体。
