Fenchone
葑酮, 1, 3, 3-三甲基-1, 4-桥亚甲基-2-环己酮
🗣️ 情景例句
They can keep a record of all of the important dates
他们可以记录下重要的日子。
I often go to school in the morning.
我常常在早上去学校。
There is hope so long as he is with us.
只要他在就有希望。