Bluestone
n. 硫酸铜, 胆矾\\n[化] 胆矾; 蓝灰砂岩
🗣️ 情景例句
It's hard for some older people to take all that noise.
一些老年人没办法忍受那些噪音。
We've got to get a telepnone stand for the hallway.
我们必须有一部电话放在走廊。
You should look at it yourself.
你应该亲自看看它。