Butyrocopal
丁酸
🗣️ 情景例句
I don't believe it!
我简直难以相信！
Forest fire caused by lava
熔岩引起的森林大火
the young man has a glorious future before him and the old one has a splendid future behind him:
青年人有光辉灿烂的前景，而老年人的辉煌已成为过去。