Polyoxamide
聚乙二酰胺
🗣️ 情景例句
a game which I brought home to study.
我带回来研究的游戏。
I often go out in the morning.
我常常在早上出门。
what would civilization be like without its benefits?
如果不受其惠，文明将会是个什么样子呢？