Polydiolefin
聚二烯烃
🗣️ 情景例句
You will only have to pay another ten cents and a nickle for your child.
你只需另外再付10美分，而你的孩子只要再付5美分。
Water dropping day by day wears the hardest rock away.
水滴天天滴不停，石头最坚也磨损。
Dear Joan,
亲爱的琼，