Xanthonation
黄原酸化作用
🗣️ 情景例句
It is special. Happy anniversary.
确实很特别。结婚周年快乐！
I left very early last night, but I wish I hadn't left so early.
我昨晚离开得非常早，但我希望我没有离开那么早。[大学英语六级]
We couldn't get across the river.
我们过不了河。