Protoquartzite
原石英岩, 石英质亚杂砂岩
🗣️ 情景例句
It is a great idea,
这是个极好的主意。
Speech is the picture of the mind.
言为心声。
The man who, in old age, can see his life in this way,
上了年纪的人这样看待生命，