Epidemics
[ [ˌepi'demiks] ]
辅助 Assistant
n. 流行病；时疫；蔓延（epidemic的复数）
🗣️ 情景例句
Grandpa, when did Dad graduate from Michigan?
爷爷，爸爸是什么时候从Michigan毕业的？
Time past cannot be called back again.
光阴一去不复返。
I was on the march.
我参加了游行。