After a few days, the sides of the first layer, called the primary cell wall, stiffen, pushing cell growth in one direction and causing the fiber to elongate.
几天后，第一层细胞壁，亦称为初生细胞壁，变硬，向一个方向推动细胞生长，从而使纤维被拉长。
| 单词 | primary cell wall |
| 释义 |
primary cell wall
原声例句
双语版 TED-Ed 演讲精选 After a few days, the sides of the first layer, called the primary cell wall, stiffen, pushing cell growth in one direction and causing the fiber to elongate. 几天后，第一层细胞壁，亦称为初生细胞壁，变硬，向一个方向推动细胞生长，从而使纤维被拉长。 |
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