Aetiologist
n. 病因学家；病原学家；原因论学家 (aetiology的变形)
🗣️ 情景例句
What are you up to?
你呢？你怎样？
This is your last chance. I believe you can make it.
这时你最后的机会，我相信你会成功的。
No,you mustn't eat anything until you see the doctor.
不行，看医生之前你不可以吃任何东西。