mode of transmission

• 传播方式

mode of transmission的用法和样例：

例句

1. Since viral reservoirs and means of transmission are poorly understood, methods of prevention have not been developed.
   因为恶性卡他热病毒的储主和传播方式了解得很少，所以还没有防制办法。
2. An international team of scientists is working to identify the hosts of the virus and mode of its natural transmission in the environment.
   一个国际科学家小组正在努力查明病毒的宿主及其在环境中的自然传播方式。