Polypentamethylene suberamide
[化] 聚亚戊基辛二酰胺; 聚辛二酰戊二胺
🗣️ 情景例句
We've been driving for hours with no gas station in sight.
我们开车开了好久也没有看到一个加油站。
Ambition never dies until there is no way out.
不到黄河心不死。
What was it?
怎么啦。