🗣️ 情景例句
What currency do they use in U.S.A.?
在美国人们用什么货币？
He was lucky to have a good home in which to grow up.
他幸运地生长在良好的家庭里。
Carbonated drinks are acidic, and slightly safer.
碳酸饮料是酸性的，就更安全一些。