Diaminopurine
[化] 二氨基嘌呤
🗣️ 情景例句
Bye, Dad.
再见， 爸爸。
Let's call it a day
进行某事
We tramped through the wood for over two hours until we arrived at a deep stream.
我们在树林中跋涉了两个多小时，到了一条深溪边。