spread through

传播的很广

蔓延开

通过…传播

可参照以下例句来理解：

spread through the Internet, to : 网路上流传

1. The illness spread through the village.
这种病在村里蔓延开了。

2. The illness spread through the whole town.
疾病扩散到全市。

3. News of this spread through all that region.
于是这风声传遍了那地方。

遍布