Polonite
[化] 钋酸盐
🗣️ 情景例句
Are you going to return it here?
你要在这里归还吗？
We invited two guests to dinner,but they didn't come.
我们邀请了2个客人去吃晚饭，但是他们没来。
This applies particularly to chemical industries,
这在化学工业方面尤其突出。