Alloxanthin
[化] 双阿脲; 双四氧嘧啶
🗣️ 情景例句
Are you kidding me?
你在取笑我？
Deliberate in counsel, prompt in action.
考虑要仔细，行动要迅速。
The policemen could not cope with the crowds.
警察无法对付群众。