Bluestone
n. 硫酸铜, 胆矾\\n[化] 胆矾; 蓝灰砂岩
🗣️ 情景例句
I understand, Grandpa.
我能体会你， 爷爷。
No. Can't you see that rocket is almost falling down.
不。你不知道火箭快要倒下来了吗？
I shall never forget that extraordinary evening.
我永远忘记不了那个不平凡的夜晚。