Diamidogen
二胺
🗣️ 情景例句
a portrait of the United States--
一幅美国的剪影--
What's the size of your shoes?
你的鞋多大尺寸？
The modern weather models work with a grid of points of the order of sixty miles apart,
现代气象模型以一个坐标图来显示，图中每个点大约是间隔60英里。