Protoquartzite
原石英岩, 石英质亚杂砂岩
🗣️ 情景例句
Downsizing is now a strong possibility.
很可能会裁员。
What can I do for you?
我能为您做些什么？
The question became one of whether Man could control the disease he had invented.
现在的问题是，人类能否控制住这种人为的疾病。