Polytetramethylene pimelamide
[化] 聚亚丁基庚二酰胺; 聚庚二酰丁二胺
🗣️ 情景例句
Have you heard the latest?
你听说那条最新消息了吗？
He already has a phonograph,but he doesn't have a radio yet.
他已经有一架留声机，但是他还没有收音机。
Did he say what it was about?
他讲了什么事吗？