Dimethylpurine
[化] 二甲基嘌呤
🗣️ 情景例句
You should have your breakfast, Son.
你应该吃早点 ，孩子。
What is the total circulation of this newsletter.
这份新闻通讯总发行量多少？
To protect themselves from the icy water, they had to wear special rubber suits.
湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。