Beryllocene
二茂铍
🗣️ 情景例句
Sir, Mr. Bennings is here to see you.
先生，本宁先生来这儿见你。
How long will you remain in the country?
你将会在乡间逗留多久？
Our TV set was broken last week. He mended it for us.
上星期我们的电视机坏了。他为我们修好了。