Polytetramethylene pimelamide
[化] 聚亚丁基庚二酰胺; 聚庚二酰丁二胺
🗣️ 情景例句
Marilyn, I have to tell you something.
我得告诉你， Marilyn
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
He said he was educated in the United States.
他说他是在美国受的教育。