And that's what's happened. Mankind has transported these eggs all the way around the world, and these insects have infested over 100 countries, and there's now 2.5 billion people living in countries where this mosquito resides.
这就是登革热迅速蔓延的原因，人类 使这些卵得以周游世界。 这种蚊子已经传播到了一百多个国家 这些国家里居住着25亿人口， 这种蚊子就在他们身边