Samaria
[化] 氧化钐
🗣️ 情景例句
You may be right.
也许你说的对。
I still have to fill 16 hours in my major.
我必须重修主修科目16小时。
They all went up some narrow steps into a large room.
他们全都登上这些狭窄的台阶，接着进入一个大房间。