Basipetal formation
[医] 近心形成, 向底层形成, 向基形成
🧩 词语组成解析
a. 由上往下的
formation
[fɔ:'meiʃən]
n. 形成;构成，结构;形成物;编队，队形;
🗣️ 情景例句
and I stayed out an extra half hour.
我还特别多待了半个小时。
To speak to the public
向公众呼吁
After chipping through a wall which was eighteen inches thick, they found that a man had been trapped in the chimney.
他们凿透了18英寸厚的墙壁，发现有个人卡在烟囱里。