Polynonanoylamide
[化] 聚壬酰胺; 尼龙-9
🗣️ 情景例句
We're also very glad to have practical business dealings with you.
我们也很高兴能和贵公司建立实质性的业务联系。
Whom will you write to?
你将写信给谁？
Ice is only as safe as the water from which it is made,
冰块只有当制造冰块的水安全时才是保险的，