Fenchone
葑酮, 1, 3, 3-三甲基-1, 4-桥亚甲基-2-环己酮
🗣️ 情景例句
Who?
谁呀？
Has he studied French very long?
他学习法语很长时间吗？
If you have any questions on the details， feel free to ask.
如果对某些细节有意见的话，请提出来。