Diamidogen
二胺
🗣️ 情景例句
Thank you very much.
非常感谢。
Have you taken a plane?
你坐过飞机吗？
These attracted many visitors, for they were not only of great architectural interest, but contained a large number of beautifully preserved frescoes as well.
这些教堂吸引大量游客，不仅是因为建筑风格奇特，而且还有大量保存完好的壁画。