Octalox
狄氏剂
🗣️ 情景例句
I hear it from my patients.
我是从我的病人那儿听到这些的。
Does John have a yellow pencil?
约翰有一支黄铅笔吗？
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。