Polyoxamide
聚乙二酰胺
🗣️ 情景例句
He visited with Grandma and me in Florida
他到Florida看过祖母和我
If I had known that, I could have helped you.
假如我早知道，我就能帮你了。
for even though it was still summer, it rained continually and it was often bitterly cold.
因为即使那时仍为夏季，但雨总是下个不停，而且常常冷得厉害。