Nitropo
硝酸钾钠
🗣️ 情景例句
I understand you used to be in the construction business,
听说你过去从事建筑业
One cloud is enough to eclipse all the sun.
一叶可障目。
'The fire broke out in the basement.I went down immediately,of course,
“地下室突然着火，我当然马上下去了。