Robusta
n. 粗壮咖啡豆
🗣️ 情景例句
What business are you in?
你从事哪一行？
What are you writing?
你正在写什么？
The study of custom can be profitable only after certain preliminary propositions have been accepted,
只有在某些基本的主张被接受下来、同时有些主张被激烈反对时，