Polynonamethylene sebacamide
[化] 聚亚壬基癸二酰胺
🗣️ 情景例句
It's not difficult.
这不难。
I imagine it was part of a dinosaur.
我猜那是恐龙的一部分骨骼。
The weather was very cold, and many people were ill.
天气非常冷，很多人生了病。