A Man-made Disease 人为的疾病

课前问题

What factor helped to spread the disease of myxomatosis?

是什么因素帮助传播了黏液瘤病？

课文首句

In the early days of the settlement of Australia, enterprising settlers unwisely introduced the European rabbit.

在澳大利亚早期定居时，富有进取心的定居者不明智地引进了欧洲兔。