Calyptrogen
n. 根冠细胞层
🗣️ 情景例句
His appearance is impressive.
他的外表给人印象深刻。
I apologize for that, sir.
请您原谅。
To get a full appreciation of what this means we must turn first to some recent human inventions.
要透彻理解这句话的意义，我们应先回顾一下人类最近的几项发明。