Etiologist
n. 病因学家；病原学家；致病源学家 (etiology的变形)
🗣️ 情景例句
Excuse me, ma'am. Ticket, please.
对不起， 太太 ，车票请拿出来看一下。
Do you have difficulty matching you feelings with words?
你是很难把自己的心意用言语表达吗？
It was stolen twenty years ago when Dan was a boy of fifteen!
这是20年前丹还是一个15岁的孩子时被人偷走的！