威尔斯让它听起来如此真实，以至于数百人相信了这个故事，恐惧蔓延到整个国家。

Welles made it sound so real that hundreds of people believed the story, and fear spread across the whole country.

寨卡病毒由蚊子传播，正在全球蔓延。

Zika, a virus carried by mosquitoes, is spreading around the world.

疾病在冬季容易蔓延。

Diseases easily spread during the winter.

皮疹迅速蔓延到他的背部。

The rash spread quickly across his back.

瘟疫迅速在城市中蔓延。

The plague spread rapidly through the city.

树根在地面下蔓延开来。

The tree roots spread out under the ground.

火迅速蔓延到整个森林。

The fire spread quickly through the forest.

我们必须遏制污染的蔓延。

We must restrain the spread of pollution.

野火迅速蔓延穿过森林。

The wildfire spread rapidly through the forest.

爆炸后，火焰迅速蔓延。

After the explosion, the flames spread quickly.