adj. 中等的,中级的;普通的;平均的;半生熟的;
n. 媒介物,媒质;中间,中庸,[生]培养基,培养液,颜料溶解液,[数]中数,平均,[逻]中名辞;手段,方法;中间物;
medi中间+um表名词→中间物,媒介
🗣️ 情景例句
She is busy now.
她正忙着呢。
How long has he been with that company?
他在那家公司多久了?
In this part of the cave, they could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave.