Copolyimide
共聚多酰胺
🗣️ 情景例句
And what does your father do?
令尊是做什么的？
In prosperity caution, in adversity patience.
处顺境时要小心，处逆境时要耐心。
Many of the tourists on board had begun bargaining with the tradesmen, but I decide not to buy anything until I had disembarked.
船上许多游客开始同商贩讨价还价起来，但我打定主意上岸之前什么也不买。