Ultracentrifuged
v. 用超高速離心器( ultracentrifuge的過去式和過去分詞 )
??? 情景例句
What's this?
這是什么？
I'm sorry. I was just playing football with my friends.
對不起，我只是和朋友去踢了足球。
I'm fine, too, thanks.
我也挺好的，謝謝！