Pyrimidine tetrone
[化] 嘧啶四酮
🧩 词语组成解析
n. 嘧啶\\n[化] 嘧啶
四酮
🗣️ 情景例句
It is already.
现在已经很兴奋了
Didn't I tell you before?
我不是告诉过你吗？
I'm not sure that this conference is as good as last year's.
我确信这次会议不如去年的会议精彩。