Epidemiologist
n. 流行病学家
🗣️ 情景例句
Uh, it must mean something.
噢 ，这很有意思。
Who is the chief of sate of this nation?
谁是这国家的领袖？
As soon as I tap on the window, you must stop within five feet.
我一敲车窗，你必须把车停在5英尺之内。