Acridone
吖啶酮
🗣️ 情景例句
What was that?
会是什么呢？
She screamed in astonishment.
她惊吓得发出尖叫。
They were in fashion last year and the year before last.But they're not in fashion this year.
这鞋在去年和前年时兴，而今年已不流行了。