流行病的用法和样例：
例句
-
科学家们已分离出引起这种流行病的病毒。
Scientists have isolated the virus causing the epidemic. -
流行病通常是和不良的卫生条件有关的。
Epidemic disease is often in connection with bad sanitary conditions. -
很多人死于天花流行病。
Many people died from the smallpox epidemic. -
这种流行病传播范围之广令人惶惶不安。
The magnitude of the epidemic was frightening. -
我们已经把那种流行病根绝了。
We have stamped out the epidemic.
