Pericambium
周边形成层(指根的中心柱最外部细胞层)
🗣️ 情景例句
I hope so.
我希望如此。
It's no sin to sell dear, but a sin to give ill measure.
高价卖不为过，短斤少两才有罪。
they must be sedulously tended, if the vivifying fruits are to be at hand when needed.
要想在需要的时候可随手摘取充满生机的果实，还需要勤勉地护理。