Saltpeter
n. 硝石, 硝酸钾, 硝酸钠\\n[化] 硝石
✅ 同义词
🗣️ 情景例句
She is upset about you.
她在生你的气。
You've got the point.
你抓住了问题的实质。
One evening, however, he failed to arrive.
可是，有一天晚上，它出去后再也没回来。