Polus
极
🗣️ 情景例句
What currency do they use in U.S.A.?
在美国人们用什么货币？
They are curious about what I've done with my time.
他们希望知道我一个人在做什么。
The bison skins were sent by rail to cities to be sold.
野牛皮用火车运到城里出售。