1 if something spreads or is spread, it becomes larger or moves so that it affects more people or a larger area 扩散,蔓延 I,T
AFFECT MORE PEOPLE/PLACES
影响更多的人/地方
2 a. to become known about or used by more and more people b. to tell a lot of people about something 传播,散布; 通知 I T
INFORMATION/IDEAS
信息/观点