Kerogen
n. 油母岩\\n[化] 油母质
🗣️ 情景例句
That's very nice of you. Where did you get it? It's not a print.
真细心！你从哪儿弄来的？这还不是复制的呢！
She made a notable contribution to science.
她对科学做出了杰出的贡献。
Yes, it is.
是的。