Polycaprolactam
聚已内酰胺, 尼龙-6
🗣️ 情景例句
I haven't seen you since the hospital.
自从医院相遇之后再也没有见到你。
You can stay as long as you pay the rent on time.
只要你按时交房租，你就能住这儿。
Yes.
是。