Nitralising
硝酸钠溶液浸渍净化法
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
It started out to be a beautiful day.
刚开始天气不错。
He's awful!He telephoned me four times Yesterday, and three times the day before yesterday.
他讨厌透了！他昨天给我打了4次电话，前天打了3次。