Polonite
[化] 釙酸鹽
??? 情景例句
Were you here last time on his birthday party?
上次你有沒有參加他的生日舞會？
I have just finished my homework.
我剛剛做完了作業。[剛剛完成的動作
Fine, thanks, Dad. What about you?
很好，謝謝爸爸。你呢？