Ultrapurity
超纯度
🗣️ 情景例句
Mr. O'Neill was so impressed with your work O'Neill
先生被你的作品深深打动
Mike found it difficult to adjust at first, but he's used to studying at Harvard now.
刚开始迈克发现很难适应在哈佛的学习，但现在他已经习惯了。
We always enjoy ourselves, Mum.Bye-bye.
我们总是玩得很开心的，妈妈。再见。