Verofylline
二氢二甲基甲丁基嘌呤二酮
🗣️ 情景例句
The other day he finally popped the question.
第二天他终于开口求婚了。
What are you playing?
你正在玩什么？
She looked at it critically for a moment.
她认真的看了好一会儿。