Tpp
[化] 硫胺素焦磷酸
🗣️ 情景例句
I only buy used books.
我只买旧书。
You play the piano beautifully.How much do you practice every day?
你完美地弹钢琴,你每天花多少时间练习？
Sometimes we aren't able to get into every building because there are too many steps.
有时我们并不能进每栋楼房，是因为楼梯太多了。