adj. 中等的,中級的;普通的;平均的;半生熟的;
n. 媒介物,媒質;中間,中庸,[生]培養基,培養液,顏料溶解液,[數]中數,平均,[邏]中名辭;手段,方法;中間物;
medi中間+um表名詞→中間物,媒介
??? 情景例句
Dad, your famous apple pie.
爸爸,你最著名的蘋果派。
Please open your baggage.
請把你的行李打開。
The early climbers were looking for the easiest way to the top, because the summit was the prize they sought, especially if it and never been attained before.