Abietene
松香烯[烃]
🗣️ 情景例句
No, thank you.
不要，谢谢。
What about your opinion?
你怎么想？
If the Houses of Parliament had not been burned down in 1834, the great clock would never have been erected.
如果不是国会大厦在1834年被焚毁的话，这座大钟永远也不会建造。