Oolith
n. [地]鲕粒(指构成鲕粒岩的基本粒子)
🗣️ 情景例句
That's it.
就这样。
Friends are thieves of time.
交朋友，费时间。
It is hard for us to realize nowadays how difficult it was for the pioneers.
我们今天很难想像昔日的登山先驱们是多么艰苦。