Nitralising
硝酸钠溶液浸渍净化法
🗣️ 情景例句
When he came to the States five years ago, he had only forty dollars in his pocket.
五年前他来美国时，口袋里只有40美元。
No. It's only a little way.
不远，只有一小段路。
OK.
好，给你。