Polynonanoylamide
[化] 聚壬酰胺; 尼龙-9
🗣️ 情景例句
There was too much work for our computer to cope with.
我们的计算机要做的工作太多，简直应接不暇。
How long will the sale last?
折价销售多久？
Yes.He must remain in bed for another two days.
是的，他还必须卧床两天。