self-propagation

例句：

1. 1. Self-propagation is a natural process that allows plants to reproduce without the need for pollination by insects.
   自我繁殖是一种自然过程，使植物能够无需昆虫授粉而繁殖。
2. 2. In the case of bacteria, self-propagation occurs when cells divide and produce new ones, allowing the bacteria tospread throughout the environment.
   在细菌的情况下，自我繁殖发生时，细胞分裂并产生新的细胞，使细菌在整个环境中扩散。
3. 3.The process of self-propagation in plants is crucial for their survival and reproduction.
   植物的自我繁殖过程对于它们的存活和繁殖至关重要。