Seybertite
[矿]绿脆云母, 多色脆云母
🗣️ 情景例句
Is your wife ill?
是你太太病了吗？
How is your family?
你的家人怎么样？
Many people in industry and the Services, who have practical experience of noise,regard any investigation of this question as a waste of time;
在工业部门工作和在军队中服役的许多人对噪音有切身的体会，他们认为对这个问题进行调查是浪费时间，