Saltpeter
n. 硝石, 硝酸钾, 硝酸钠\\n[化] 硝石
✅ 同义词
🗣️ 情景例句
We've got permission to go inside the old building
我们已获 进入那栋老建筑物
It is a foolish sheep that makes the wolf his confessor.
蠢羊才向狼忏悔。
he hardly ever used it, preferring always to go on foot.
但却很少使用，常常喜欢以步代车。