Epidemics
[ [ˌepi'demiks] ]
辅助 Assistant
n. 流行病；时疫；蔓延（epidemic的复数）
🗣️ 情景例句
You're a wonderful granddaughter.
真是个好孙女。
When one is about to act, one must reason first.
凡事要先思而后行。
In the letter he was asked to call at the station.
要他到警察局去一趟。