Diamidogen
二胺
🗣️ 情景例句
The battle was very historic.
那场战役在历史上很重要。
He has a pair of shoes.
他有一双鞋。
Is that true? said Lucy. She was surprised. Is it a real king's hat?
“是真的吗？”露西问。她感到惊奇。“那真的是国王的帽子？”