Polycaprolactam
聚已内酰胺, 尼龙-6
🗣️ 情景例句
That's the recreation center and restaurant.
那是娱乐中心和餐馆。
I know the boy whose father is a pilot.
我知道那个男孩的父亲是飞行员。
Would you like a cup of tea?
你想喝杯茶吗？