Saltpeter
n. 硝石, 硝酸钾, 硝酸钠\\n[化] 硝石
✅ 同义词
🗣️ 情景例句
What kind of house do you have in mind?
你想买什么样的房子呢？
The days are getting hotter.
日子正在变得更热。
How often do you write?
你们隔多久写信？