Acetonylacetone
[化] 2,5-己二酮
🗣️ 情景例句
I hope that someday maybe you'll be able to visit my family in Beijing.
我希望将来有一天，你可以来北京到我家里作客。
Yes.It looks terrific!
很合身，看上去好极了。
Would you like one of these mooncakes?
你要不要吃个月饼？