Danthron
[化] 丹蒽醌; 1,8-二羟基蒽醌
🗣️ 情景例句
Which band of College English Test have you passed?
大学英语考试过了几级？
Do you ever go swimming on the weekend?
你曾经在周末去游泳吗？
Do you want to speak to her?
您要同她谈话吗？