Bluestone
n. 硫酸铜, 胆矾\\n[化] 胆矾; 蓝灰砂岩
🗣️ 情景例句
Harry, if Michelle doesn't want to go,
Harry如果Michelle不想去，
I don't know what his native language is.
我不知道他的母语是什么。
They're better when they're hot.
趁热吃更好。