Polypentamethylene azelamide
[化] 聚亚戊基壬二酰胺; 聚壬二酰戊二胺
🗣️ 情景例句
Here they are. Family Album, U.S.A.
就在这里。美国写真！
What size shoes do you wear?
你穿的鞋子是什么尺寸的？
They made no effort to hide their amusement whenever I produced a packet of sweets from my pocket.
每当我从口袋里掏出一包糖果时，他们都毫不掩饰地表现出他们对此感到非常好笑。