Superpolyamide
高分子量聚酰胺
🗣️ 情景例句
Good idea, Jack. What do you think about the second part?
好主意，杰克，你对第二部分有什么看法？
It is good to be merry at meal.
席间心情愉快是为上策。
After I had given her some money, she looked into a crystal ball and said: 'A relation of yours is coming to see you.
“您的一个亲戚就要来看您了。