Dipyrrole
α, α'-联吡咯
🗣️ 情景例句
What college are you attending?
你在哪里上学？
All disputes arising in the course of the consignment period shall be settled amicably through friendly negotiation.
所有在运输途中引起的纠纷都将通过友好协商，妥善加以解决。
Your name, please？
请问贵姓大名？