Milk sickness kills thousands of pioneers every year.
牛奶病每年夺去数千拓荒者的生命。
英语百科
Milk sickness
Milk sickness, also known as tremetol vomiting or, in animals, as trembles, is a kind of poisoning, characterized by trembling, vomiting, and severe intestinal pain, that affects individuals who ingest milk, other dairy products, or meat from a cow that has fed on white snakeroot plant, which contains the poison tremetol.