Aetiologies
(aetiology 的复数) n. 原因的说明, 原因论, 病原学, 病原\\n[医] 病原学, 病因学
🗣️ 情景例句
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
I think it's about time we got going.
我想差不多是该告辞的时候了。
And I want a large box of chalk, too.
我还要一大盒粉笔。