Dimethylxanthine
[医] 二甲黄嘌呤, 可可豆硷
🗣️ 情景例句
Hi, Pop. Hi, Son.
你好， 爸。你好 ，儿子。
When guns speak it is too late to argue.
待到炮声响，辩论已莫及。
She loves her work because she loves books.
她热爱自己的工作，因为她喜爱图书。