vt.

1. 繁殖，增殖
   Trees propagate themselves by seeds.

   树靠种子繁衍。

2. 使遗传
3. 传播；使普及
   propagate scientific knowledge

   普及科学知识

4. 【物】传播，传导

vi.

1. 繁殖，增殖

v.

1. breed by natural processes from the parent stock.
   ▸cause to increase in number or amount.
2. promote (an idea, knowledge, etc.) widely.
3. transmit or be transmitted in a particular direction.