Polynonanoylamide
[化] 聚壬酰胺; 尼龙-9
🗣️ 情景例句
Mr. Stewart …
Stewart先生……
How about on Tuesday afternoon of next week? Is that okay with everyone?
下星期二下午怎样？各位没有意见吧？
Goats are also kept. Apart from their milk, the wool from their coats is used in expensive clothing.
除了获取羊奶之外，从羊皮上剪下的羊毛还用来制作昂贵的服装。