Protoquartzite
原石英岩, 石英质亚杂砂岩
🗣️ 情景例句
Yes, both. Last trip I fished a little and hiked three miles.
是的，两者都做。上次出去时，我钓了一会儿鱼，又步行了三英里。
There is safety in numbers.
人多势众。
Although negotiators are optimistic, the details are complex enough that they may be hard-pressed to get a deal at all.
然谈判代表持乐观态度，但协议细节如此复杂，他们所面临的困难很可能使他们无法取得一致。