inner cell mass

例句：

1. 1. The inner cell mass is responsiblefor the growth and development of the plant.
   内细胞团负责植物的生长和发育。
2. 2.The core cell mass is the main partof the plant that contains all the essentialorgans.
   核心细胞团是植物中包含所有必需器官的主要部分。
3. 3. The nucleus is the center of the cellwhere DNA is stored and replicated.
   核是细胞的中心，DNA在这里存储并复制。