Samaria
[化] 氧化钐
🗣️ 情景例句
He is making good progress after his operation.
他动过手术后病情大为好转。
The dog that fetches will carry.
来道是非者，便是是非人。
Oh, hello, Jim. Glad to see you again. How are you?
啊，你好，吉姆。很高兴又见到你。你好吗？