Chrysoquinone
[化] 5,6-┒醌
🗣️ 情景例句
Are the bathrooms on this train clean?
火车上的卫生间干净吗？
It has been a long time since last came here.
自从我上次来这里已经有很长时间了。
Yes, I've looked for it everywhere, said Han Meimei.
“是的，我到处都找过了，”韩梅梅说。