Polynonanoylamide
[化] 聚壬酰胺; 尼龙-9
🗣️ 情景例句
Mr Wang, I'd like you to meet my brother, Haitian.
王先生，我想请你见见我弟弟，海天。
We cannot proceed any further without receiving your thoughts with respect to the manner of payment.
我们如果不了解你们对付款方式的意见，便不能进一步检讨。
I don't know. I can't see!
我不知道，我看不见。