Epidemiological
a. 流行病学
✅ 同义词
🗣️ 情景例句
I'm sure it's in your purse, Mrs. Tobin.
我相信是在你的皮包 Tobin太太。
Take time when time comes lest time steal away.
机不可失，时不再来。
You forget that I was a medical student once upon a time.'
你忘了我以前是学医的了。”