Polydiolefin
聚二烯烃
🗣️ 情景例句
Where do I register for classes?
我在哪儿登记我上的课？
Kill the goose that laid the golden egg.
杀鸡取蛋
I took a burning branch from the fire and went to examine the rock.
我从火堆中拿起一根燃着的树枝，走过去检查那个岩石。