potassium
n[U]
chemical element, a soft shiny silvery-white metal occurring in rocks and in the form of mineral salts and essential for all living things 钾. =>App 10 见附录10.
🗣️ 情景例句
I'd like you to meet Audrey and her mother, Mrs. Cooper.
我来向你介绍, Audrey和她母亲 Cooper太太。
I would like to confirm the reserved seat.
我要确定已预定的位置。
We were very much surprised when the snake charmer suddenly began to play jazz and modern pop songs.