Deoxypentosenucleic acid
[化] 脱氧戊糖核酸
🧩 词语组成解析
🗣️ 情景例句
The old library building on Chestnut Street,
Chestnut街老图书馆，
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
Can you help me?
你可以帮帮我吗？