英语听力精选进阶版 14497（在线收听）

Deadly discovery in US labs

Vocabulary

premises

buildings and land used by an organisation or business

microbes

small living things that can only be seen with a microscope

facilities

(here) buildings containing equipment used for a particular activity

the plague

a disease, usually deadly, that quickly spreads to lots of people

toxins

poisonous substances

botulism

serious illness caused by eating food that has gone bad

vial

small bottle for keeping medicine or other liquids in

posed

caused (a problem)