top root

例句：

1. 1. The plant's top root is growing vigorously.
   这株植物的顶部根正在茁壮成长。
2. 2.The research team focused on the top root of the disease.
   研究团队专注于疾病的顶端根。
3. 3. The scientist discovered a new species of plant with a unique top root structure.
   科学家发现了一种具有独特顶端根结构的植物新物种。