Hafnyl
铪氧基
🗣️ 情景例句
and make sure that it is in good condition
确定它状 良好
Do you think you could keep the noise down?
你看能不能小声一些？
From the moment he arrived there, he kept on pestering his doctor to tell him when he would be able to go home.
从他进医院那一刻时，他就缠住医生，让医生告诉他什么时候能回家。