Polyheptamethylene sebacamide
[化] 聚亚庚基癸二酰胺; 聚癸二酰庚二胺
🗣️ 情景例句
Hello. This is a representative of Zhongyou Department Store.
喂，您好。我是中友百货的。
The mechanic repairs cars.
机工修理汽车。
Good morning.
早上好。