Polymethylene derivatives
[建] 聚甲烯衍生物
🧩 词语组成解析
n. [化]聚亚甲基
派生物
🗣️ 情景例句
Thank you.
谢谢你 。
One man may steal a horse while another may not look over a hedge.
只许州官放火，不许百姓点灯。
During my years in school, Annie sat beside me in every class.
在我求学期间，安妮每堂课都坐在我身旁。