Isoviocristin
二羟基甲氧基甲基蒽二酮
🗣️ 情景例句
By plane?
坐飞机来？
She's a widow.Her husband died last year.
她是一个寡妇。她的丈夫去年死了。
They were glad of the examination being over.
他们为考试结束了而高兴。