Actonel
一种抗骨质疏松药
🗣️ 情景例句
I'd like to use my brain a little more.
我想多用用我的脑子。
How long is the ticket valid?
这车票有效期多久？
There are eighteen floors in the building, and he lives on the fifteenth floor.
这幢大楼有18层。他住在第15层。