Pericambium
周边形成层(指根的中心柱最外部细胞层)
🗣️ 情景例句
I'm sick of English, I want to learn French.
我讨厌英语，我想学法语。
Actually, my interest was directed more towards what particular markets you foresee for our product.
事实上，我关心的是贵公司对我们产品市场的考量。
While early settlers had killed bison for food, now the killing became more widespread.
早期的殖民者只是以杀野牛为食，这时屠宰野牛就更为广泛了。