Hydroxylammonium
羟铵
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
OK. That'll be $12.00, please.
到了。请付12美元。
Well, I suggest you see some of our national parks.
那么，我建议你参观一下我们的国家公园。