Saliter
硝石, 钠硝, 硝酸钠
🗣️ 情景例句
Richard, that's the baby.
Richard是小宝宝哭了。
Who is this?I don't recognize your voice.
你是谁？我听不出你的声音。
When are you going to have a holiday, Sam?
萨姆，你准备什么时候去度假？