释义
n. 增殖,繁殖,广传
例句
1. The sun sometimes spoils the propagation of radio waves.
太阳有时会影响无线电波的传播。
2. The systematic propagation of a doctrine or cause or of information reflecting the views and interests of those people advocating such a doctrine or cause.
宣传活动对一个学说、事业或信息的系统宣传，其反映倡导该学说或该事业的人的观点和利益