Unobtanium
n. 电影《阿凡达》中一种罕见的常温超导体，拥有奇特的磁场
🗣️ 情景例句
Are all the answers here to your satisfaction?
这里所有的答复都令您满意吗？
Maybe we could start with the Designing Department.
也许我们可以先参观一下设计部门。
It's a bit windy today, isn't it?
今天有点风，是不是？