Polypentamethylene azelamide
[化] 聚亚戊基壬二酰胺; 聚壬二酰戊二胺
🗣️ 情景例句
That's very nice of you, but I really can't.
你太客气了，可我真的非走不可。
Don't forget to put stamps on the letter.
不要忘记在信封上贴邮票。
How was the exam, Richard?
考试考得怎样，理查德？